diff --git a/src/Maui/Prism.Maui/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs b/src/Maui/Prism.Maui/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
index 5f2b4397a8..0216939507 100644
--- a/src/Maui/Prism.Maui/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
+++ b/src/Maui/Prism.Maui/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
@@ -1,4 +1,4 @@
-using System.ComponentModel;
+using System.ComponentModel;
 using Prism.Ioc;
 
 namespace Prism.Navigation.Regions.Behaviors;
@@ -61,7 +61,7 @@ private void StartPopulatingContent()
                 var registration = registry.Registrations.FirstOrDefault(x => x.View == type);
                 if (registration is not null)
                 {
-                    var view = registry.CreateView(container, registration.Name) as VisualElement;
+                    var view = registry.CreateView(container, registration.Name);
                     Region.Add(view);
                 }
             }
diff --git a/src/Uno/Prism.Uno/Navigation/Regions/NavigationViewRegionAdapter.cs b/src/Uno/Prism.Uno/Navigation/Regions/NavigationViewRegionAdapter.cs
index 83fcd12d1f..eb9411bf0b 100644
--- a/src/Uno/Prism.Uno/Navigation/Regions/NavigationViewRegionAdapter.cs
+++ b/src/Uno/Prism.Uno/Navigation/Regions/NavigationViewRegionAdapter.cs
@@ -27,8 +27,8 @@ protected override void Adapt(IRegion region, NavigationView regionTarget)
         };
     }
 
-    protected override IRegion CreateRegion()
+    protected override IRegion CreateRegion(object regionTarget)
     {
-        return new SingleActiveRegion();
+        return new SingleActiveRegion(regionTarget);
     }
 }
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/AllActiveRegion.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/AllActiveRegion.cs
index e26302aee0..7bb08ac6f1 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/AllActiveRegion.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/AllActiveRegion.cs
@@ -5,7 +5,7 @@ namespace Prism.Navigation.Regions
     /// <summary>
     /// Region that keeps all the views in it as active. Deactivation of views is not allowed.
     /// </summary>
-    public class AllActiveRegion : Region
+    public class AllActiveRegion(object target) : Region(target)
     {
         /// <summary>
         /// Gets a readonly view of the collection of all the active views in the region. These are all the added views.
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
index 10ae82ea94..0ed47777a4 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/Behaviors/AutoPopulateRegionBehavior.cs
@@ -44,6 +44,22 @@ private void StartPopulatingContent()
                 AddViewIntoRegion(view);
             }
 
+            if (Region is ITargetAwareRegion targetAware && targetAware.Target is FrameworkElement target 
+                && target.GetValue(RegionManager.DefaultViewProperty) != null)
+            {
+                var defaultView = target.GetValue(RegionManager.DefaultViewProperty);
+                if (defaultView is string targetName)
+                    Region.Add(targetName);
+                else if (defaultView is UIElement element)
+                    Region.Add(element);
+                else if (defaultView is Type type)
+                {
+                    var container = ContainerLocator.Container;
+                    var view = container.Resolve(type);
+                    Region.Add(view);
+                }
+            }
+
             regionViewRegistry.ContentRegistered += OnViewRegistered;
         }
 
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/ContentControlRegionAdapter.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/ContentControlRegionAdapter.cs
index 52aa7a991c..a3b4827b36 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/ContentControlRegionAdapter.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/ContentControlRegionAdapter.cs
@@ -53,9 +53,9 @@ protected override void Adapt(IRegion region, ContentControl regionTarget)
         /// Creates a new instance of <see cref="SingleActiveRegion"/>.
         /// </summary>
         /// <returns>A new instance of <see cref="SingleActiveRegion"/>.</returns>
-        protected override IRegion CreateRegion()
+        protected override IRegion CreateRegion(object regionTarget)
         {
-            return new SingleActiveRegion();
+            return new SingleActiveRegion(regionTarget);
         }
     }
 }
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/ITargetAwareRegion.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/ITargetAwareRegion.cs
new file mode 100644
index 0000000000..fb5a807480
--- /dev/null
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/ITargetAwareRegion.cs
@@ -0,0 +1,6 @@
+namespace Prism.Navigation.Regions;
+
+public interface ITargetAwareRegion : IRegion
+{
+    object Target { get; }
+}
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/ItemsControlRegionAdapter.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/ItemsControlRegionAdapter.cs
index 6ff23fc583..0ac7f6ffab 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/ItemsControlRegionAdapter.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/ItemsControlRegionAdapter.cs
@@ -56,9 +56,9 @@ protected override void Adapt(IRegion region, ItemsControl regionTarget)
         /// Creates a new instance of <see cref="AllActiveRegion"/>.
         /// </summary>
         /// <returns>A new instance of <see cref="AllActiveRegion"/>.</returns>
-        protected override IRegion CreateRegion()
+        protected override IRegion CreateRegion(object regionTarget)
         {
-            return new AllActiveRegion();
+            return new AllActiveRegion(regionTarget);
         }
     }
 }
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/Region.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/Region.cs
index 624f49fb24..17a4bbb0a8 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/Region.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/Region.cs
@@ -8,7 +8,7 @@ namespace Prism.Navigation.Regions
     /// <summary>
     /// Implementation of <see cref="IRegion"/> that allows multiple active views.
     /// </summary>
-    public class Region : IRegion
+    public class Region : ITargetAwareRegion
     {
         private ObservableCollection<ItemMetadata> _itemMetadataCollection;
         private string _name;
@@ -23,13 +23,20 @@ public class Region : IRegion
         /// <summary>
         /// Initializes a new instance of <see cref="Region"/>.
         /// </summary>
-        public Region()
+        /// <param name="target">The target view of the Region</param>
+        public Region(object target)
         {
             Behaviors = new RegionBehaviorCollection(this);
+            Target = target;
 
             _sort = DefaultSortComparison;
         }
 
+        /// <summary>
+        /// Gets the target view of the Region.
+        /// </summary>
+        public object Target { get; }
+
         /// <summary>
         /// Occurs when a property value changes.
         /// </summary>
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/RegionAdapterBase.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/RegionAdapterBase.cs
index d8523d36a6..5d7f82d8c6 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/RegionAdapterBase.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/RegionAdapterBase.cs
@@ -35,7 +35,7 @@ public IRegion Initialize(T regionTarget, string regionName)
             if (regionName == null)
                 throw new ArgumentNullException(nameof(regionName));
 
-            IRegion region = CreateRegion();
+            IRegion region = CreateRegion(regionTarget);
             region.Name = regionName;
 
             SetObservableRegionOnHostingControl(region, regionTarget);
@@ -121,7 +121,7 @@ protected virtual void AttachBehaviors(IRegion region, T regionTarget)
         /// that will be used to adapt the object.
         /// </summary>
         /// <returns>A new instance of <see cref="IRegion"/>.</returns>
-        protected abstract IRegion CreateRegion();
+        protected abstract IRegion CreateRegion(object regionTarget);
 
         private static T GetCastedObject(object regionTarget)
         {
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/RegionManager.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/RegionManager.cs
index 4ac125e9e5..26c0c25334 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/RegionManager.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/RegionManager.cs
@@ -67,6 +67,40 @@ public static string GetRegionName(DependencyObject regionTarget)
             return regionTarget.GetValue(RegionNameProperty) as string;
         }
 
+        /// <summary>
+        /// Sets the DefaultView on the specified region
+        /// </summary>
+        public static readonly DependencyProperty DefaultViewProperty =
+            DependencyProperty.RegisterAttached("DefaultView", typeof(object), typeof(RegionManager), null);
+
+        /// <summary>
+        /// Gets the Default View Instance, Type or Name
+        /// </summary>
+        /// <param name="regionTarget">The Region Target View</param>
+        /// <returns></returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        public static object GetDefaultView(DependencyObject regionTarget)
+        {
+            if (regionTarget == null)
+                throw new ArgumentNullException(nameof(regionTarget));
+
+            return regionTarget.GetValue(DefaultViewProperty);
+        }
+
+        /// <summary>
+        /// Sets the Default Region View Instance, Type or Name.
+        /// </summary>
+        /// <param name="regionTarget">The Region Target.</param>
+        /// <param name="viewNameTypeOrInstance">The view instance, type or name.</param>
+        /// <exception cref="ArgumentNullException"></exception>
+        public static void SetDefaultView(DependencyObject regionTarget, object viewNameTypeOrInstance)
+        {
+            if (regionTarget == null)
+                throw new ArgumentNullException(nameof(regionTarget));
+
+            regionTarget.SetValue(DefaultViewProperty, viewNameTypeOrInstance);
+        }
+
         private static readonly DependencyProperty ObservableRegionProperty =
             DependencyProperty.RegisterAttached("ObservableRegion", typeof(ObservableObject<IRegion>), typeof(RegionManager), null);
 
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/SelectorRegionAdapter.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/SelectorRegionAdapter.cs
index 87bbd7ce6c..3d4b007216 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/SelectorRegionAdapter.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/SelectorRegionAdapter.cs
@@ -55,9 +55,9 @@ protected override void AttachBehaviors(IRegion region, Selector regionTarget)
         /// Creates a new instance of <see cref="Region"/>.
         /// </summary>
         /// <returns>A new instance of <see cref="Region"/>.</returns>
-        protected override IRegion CreateRegion()
+        protected override IRegion CreateRegion(object regionTarget)
         {
-            return new Region();
+            return new Region(regionTarget);
         }
     }
 }
diff --git a/src/Wpf/Prism.Wpf/Navigation/Regions/SingleActiveRegion.cs b/src/Wpf/Prism.Wpf/Navigation/Regions/SingleActiveRegion.cs
index 45f0b299f1..c12c934250 100644
--- a/src/Wpf/Prism.Wpf/Navigation/Regions/SingleActiveRegion.cs
+++ b/src/Wpf/Prism.Wpf/Navigation/Regions/SingleActiveRegion.cs
@@ -3,7 +3,7 @@ namespace Prism.Navigation.Regions
     /// <summary>
     /// Region that allows a maximum of one active view at a time.
     /// </summary>
-    public class SingleActiveRegion : Region
+    public class SingleActiveRegion(object target) : Region(target)
     {
         /// <summary>
         /// Marks the specified view as active.
diff --git a/tests/Wpf/Prism.Container.Wpf.Shared/Fixtures/Regions/RegionNavigationContentLoaderFixture.cs b/tests/Wpf/Prism.Container.Wpf.Shared/Fixtures/Regions/RegionNavigationContentLoaderFixture.cs
index 2a49859e23..054b1bb154 100644
--- a/tests/Wpf/Prism.Container.Wpf.Shared/Fixtures/Regions/RegionNavigationContentLoaderFixture.cs
+++ b/tests/Wpf/Prism.Container.Wpf.Shared/Fixtures/Regions/RegionNavigationContentLoaderFixture.cs
@@ -1,4 +1,4 @@
-using System.Linq;
+using System.Linq;
 using Prism.Ioc;
 using Prism.IocContainer.Wpf.Tests.Support.Mocks.Views;
 using Prism.Navigation.Regions;
@@ -31,7 +31,7 @@ public void ShouldFindCandidateViewInRegion()
 
             // We cannot access the UnityRegionNavigationContentLoader directly so we need to call its
             // GetCandidatesFromRegion method through a navigation request.
-            IRegion testRegion = new Region();
+            IRegion testRegion = new Region(new ContentControl());
 
             MockView view = new MockView();
             testRegion.Add(view);
@@ -54,7 +54,7 @@ public void ShouldFindCandidateViewWithFriendlyNameInRegion()
 
             // We cannot access the Container specific RegionNavigationContentLoader directly so we need to call its
             // GetCandidatesFromRegion method through a navigation request.
-            IRegion testRegion = new Region();
+            IRegion testRegion = new Region(new ContentControl());
 
             var view = _container.Resolve<object>("SomeView") as MockView;
             testRegion.Add(view);
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/AllActiveRegionFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/AllActiveRegionFixture.cs
index 526174dc60..f229a010c5 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/AllActiveRegionFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/AllActiveRegionFixture.cs
@@ -12,7 +12,7 @@ public class AllActiveRegionFixture
         public void AddingViewsToRegionMarksThemAsActive()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new AllActiveRegion();
+            IRegion region = new AllActiveRegion(new ItemsControl());
             var view = new object();
 
             region.Add(view);
@@ -25,7 +25,7 @@ public void DeactivateThrows()
         {
             var ex = Assert.Throws<InvalidOperationException>(() =>
             {
-                IRegion region = new AllActiveRegion();
+                IRegion region = new AllActiveRegion(new ItemsControl());
                 var view = new object();
                 region.Add(view);
 
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/ClearChildViewsRegionBehaviorFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/ClearChildViewsRegionBehaviorFixture.cs
index a5498594a7..23bba2a6b4 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/ClearChildViewsRegionBehaviorFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/ClearChildViewsRegionBehaviorFixture.cs
@@ -15,7 +15,7 @@ public void WhenClearChildViewsPropertyIsNotSet_ThenChildViewsRegionManagerIsNot
         {
             var regionManager = new MockRegionManager();
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
             region.RegionManager = regionManager;
 
             var behavior = new ClearChildViewsRegionBehavior();
@@ -37,7 +37,7 @@ public void WhenClearChildViewsPropertyIsTrue_ThenChildViewsRegionManagerIsClear
         {
             var regionManager = new MockRegionManager();
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
             region.RegionManager = regionManager;
 
             var behavior = new ClearChildViewsRegionBehavior();
@@ -61,7 +61,7 @@ public void WhenRegionManagerChangesToNotNullValue_ThenChildViewsRegionManagerIs
         {
             var regionManager = new MockRegionManager();
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
             region.RegionManager = regionManager;
 
             var behavior = new ClearChildViewsRegionBehavior();
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionActiveAwareBehaviorFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionActiveAwareBehaviorFixture.cs
index d0f57ac893..2d1c792b48 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionActiveAwareBehaviorFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionActiveAwareBehaviorFixture.cs
@@ -131,7 +131,7 @@ public void DoesNotThrowWhenAddingNonActiveAwareDataContexts()
         public void WhenParentViewGetsActivatedOrDeactivated_ThenChildViewIsNotUpdated()
         {
             var scopedRegionManager = new RegionManager();
-            var scopedRegion = new Region { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
+            var scopedRegion = new Region(new ContentControl()) { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
             scopedRegionManager.Regions.Add(scopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
             behaviorForScopedRegion.Attach();
@@ -160,7 +160,7 @@ public void WhenParentViewGetsActivatedOrDeactivated_ThenChildViewIsNotUpdated()
         public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewIsUpdated()
         {
             var scopedRegionManager = new RegionManager();
-            var scopedRegion = new Region { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
+            var scopedRegion = new Region(new ContentControl()) { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
             scopedRegionManager.Regions.Add(scopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
             behaviorForScopedRegion.Attach();
@@ -189,7 +189,7 @@ public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewIsUpdate
         public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewWithAttributeInVMIsUpdated()
         {
             var scopedRegionManager = new RegionManager();
-            var scopedRegion = new Region { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
+            var scopedRegion = new Region(new ContentControl()) { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
             scopedRegionManager.Regions.Add(scopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
             behaviorForScopedRegion.Attach();
@@ -219,7 +219,7 @@ public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewWithAttr
         public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewModelThatIsNotAFrameworkElementIsNotUpdated()
         {
             var scopedRegionManager = new RegionManager();
-            var scopedRegion = new Region { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
+            var scopedRegion = new Region(new ContentControl()) { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
             scopedRegionManager.Regions.Add(scopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
             behaviorForScopedRegion.Attach();
@@ -248,7 +248,7 @@ public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewModelTha
         public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewNotInActiveViewsIsNotUpdated()
         {
             var scopedRegionManager = new RegionManager();
-            var scopedRegion = new Region { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
+            var scopedRegion = new Region(new ContentControl()) { Name = "MyScopedRegion", RegionManager = scopedRegionManager };
             scopedRegionManager.Regions.Add(scopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = scopedRegion };
             behaviorForScopedRegion.Attach();
@@ -281,7 +281,7 @@ public void WhenParentViewGetsActivatedOrDeactivated_ThenSyncedChildViewNotInAct
         public void WhenParentViewWithoutScopedRegionGetsActivatedOrDeactivated_ThenSyncedChildViewIsNotUpdated()
         {
             var commonRegionManager = new RegionManager();
-            var nonScopedRegion = new Region { Name = "MyRegion", RegionManager = commonRegionManager };
+            var nonScopedRegion = new Region(new ContentControl()) { Name = "MyRegion", RegionManager = commonRegionManager };
             commonRegionManager.Regions.Add(nonScopedRegion);
             var behaviorForScopedRegion = new RegionActiveAwareBehavior { Region = nonScopedRegion };
             behaviorForScopedRegion.Attach();
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionMemberLifetimeBehaviorFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionMemberLifetimeBehaviorFixture.cs
index 3802c1948a..9583733dd7 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionMemberLifetimeBehaviorFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/RegionMemberLifetimeBehaviorFixture.cs
@@ -21,10 +21,10 @@ public RegionMemberLifetimeBehaviorFixture()
 
         protected virtual void Arrange()
         {
-            this.Region = new Region();
-            this.Behavior = new RegionMemberLifetimeBehavior();
-            this.Behavior.Region = this.Region;
-            this.Behavior.Attach();
+            Region = new Region(new ContentControl());
+            Behavior = new RegionMemberLifetimeBehavior();
+            Behavior.Region = Region;
+            Behavior.Attach();
         }
 
         [Fact]
@@ -257,10 +257,10 @@ public class RegionMemberLifetimeBehaviorAgainstSingleActiveRegionFixture
     {
         protected override void Arrange()
         {
-            this.Region = new SingleActiveRegion();
-            this.Behavior = new RegionMemberLifetimeBehavior();
-            this.Behavior.Region = this.Region;
-            this.Behavior.Attach();
+            Region = new SingleActiveRegion(new ContentControl());
+            Behavior = new RegionMemberLifetimeBehavior();
+            Behavior.Region = Region;
+            Behavior.Attach();
         }
     }
 }
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/SelectorItemsSourceSyncRegionBehaviorFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/SelectorItemsSourceSyncRegionBehaviorFixture.cs
index 35c26fc137..a1bc897b46 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/SelectorItemsSourceSyncRegionBehaviorFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/Behaviors/SelectorItemsSourceSyncRegionBehaviorFixture.cs
@@ -208,7 +208,7 @@ public void ShouldAllowMultipleSelectedItemsForListBox()
 
         private SelectorItemsSourceSyncBehavior CreateBehavior()
         {
-            Region region = new Region();
+            Region region = new Region(new ContentControl());
             Selector selector = new TabControl();
 
             var behavior = new SelectorItemsSourceSyncBehavior();
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/ContentControlRegionAdapterFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/ContentControlRegionAdapterFixture.cs
index 0027a4063a..1c82189cba 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/ContentControlRegionAdapterFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/ContentControlRegionAdapterFixture.cs
@@ -158,7 +158,7 @@ public TestableContentControlRegionAdapter() : base(null)
 
             private MockPresentationRegion region = new MockPresentationRegion();
 
-            protected override IRegion CreateRegion()
+            protected override IRegion CreateRegion(object regionTarget)
             {
                 return region;
             }
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/ItemsControlRegionAdapterFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/ItemsControlRegionAdapterFixture.cs
index e75d6b0297..dec0caa80c 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/ItemsControlRegionAdapterFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/ItemsControlRegionAdapterFixture.cs
@@ -111,7 +111,7 @@ public TestableItemsControlRegionAdapter() : base(null)
 
             private MockPresentationRegion region = new MockPresentationRegion();
 
-            protected override IRegion CreateRegion()
+            protected override IRegion CreateRegion(object regionTarget)
             {
                 return region;
             }
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/LocatorNavigationTargetHandlerFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/LocatorNavigationTargetHandlerFixture.cs
index 8f1c1afa5f..47e3835082 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/LocatorNavigationTargetHandlerFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/LocatorNavigationTargetHandlerFixture.cs
@@ -19,7 +19,7 @@ public void WhenViewExistsAndDoesNotImplementINavigationAware_ThenReturnsView()
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view = new TestView();
 
@@ -48,7 +48,7 @@ public void WhenRegionHasMultipleViews_ThenViewsWithMatchingTypeNameAreConsidere
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1 = new TestView();
             var view2 = new Test2View();
@@ -79,7 +79,7 @@ public void WhenRegionHasMultipleViews_ThenViewsWithMatchingFullTypeNameAreConsi
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1 = new TestView();
             var view2 = new Test2View();
@@ -110,7 +110,7 @@ public void WhenViewExistsAndImplementsINavigationAware_ThenViewIsQueriedForNavi
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<INavigationAware>();
             viewMock
@@ -144,7 +144,7 @@ public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDa
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var dataContextMock = new Mock<INavigationAware>();
             dataContextMock
@@ -180,7 +180,7 @@ public void WhenNoCurrentMatchingViewExists_ThenReturnsNewlyCreatedInstanceWithS
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view = new TestView();
 
@@ -210,7 +210,7 @@ public void WhenViewExistsAndImplementsINavigationAware_ThenViewIsQueriedForNavi
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<INavigationAware>();
             viewMock
@@ -248,7 +248,7 @@ public void WhenViewExistsAndHasDataContextThatImplementsINavigationAware_ThenDa
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var dataContextMock = new Mock<INavigationAware>();
             dataContextMock
@@ -285,7 +285,7 @@ public void WhenViewCannotBeCreated_ThenThrowsAnException()
 
             containerMock.Setup(sl => sl.Resolve(typeof(object), typeof(TestView).Name)).Throws<ActivationException>();
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var navigationContext = new NavigationContext(null, new Uri(typeof(TestView).Name, UriKind.Relative));
 
@@ -308,7 +308,7 @@ public void WhenViewAddedByHandlerDoesNotImplementINavigationAware_ThenReturnsVi
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view = new TestView();
 
@@ -352,7 +352,7 @@ public void WhenRequestingContentForNullContext_ThenThrows()
             var containerMock = new Mock<IContainerExtension>();
             ContainerLocator.SetContainerExtension(containerMock.Object);
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var navigationTargetHandler = new TestRegionNavigationContentLoader(containerMock.Object);
 
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/NavigationContextFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/NavigationContextFixture.cs
index f362adf918..1fcd5b9381 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/NavigationContextFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/NavigationContextFixture.cs
@@ -17,7 +17,7 @@ public void WhenCreatingANewContextForAUriWithAQuery_ThenNewContextInitializesPr
             var navigationJournalMock = new Mock<IRegionNavigationJournal>();
             var navigationServiceMock = new Mock<IRegionNavigationService>();
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             navigationServiceMock.SetupGet(n => n.Region).Returns(region);
             navigationServiceMock.SetupGet(x => x.Journal).Returns(navigationJournalMock.Object);
 
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionAdapterBaseFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionAdapterBaseFixture.cs
index c7c0da4b50..63b61df444 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionAdapterBaseFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionAdapterBaseFixture.cs
@@ -94,7 +94,7 @@ protected override void Adapt(IRegion region, MockRegionTarget regionTarget)
                 adaptArgumentRegionTarget = regionTarget;
             }
 
-            protected override IRegion CreateRegion()
+            protected override IRegion CreateRegion(object regionTarget)
             {
                 return CreateRegionReturnValue;
             }
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionFixture.cs
index f126de6208..5bcec186a8 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionFixture.cs
@@ -16,7 +16,7 @@ public class RegionFixture
         public void WhenRegionConstructed_SortComparisonIsDefault()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             Assert.NotNull(region.SortComparison);
             Assert.Equal(region.SortComparison, Region.DefaultSortComparison);
@@ -26,7 +26,7 @@ public void WhenRegionConstructed_SortComparisonIsDefault()
         public void CanAddContentToRegion()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             Assert.Empty(region.Views.Cast<object>());
 
@@ -39,7 +39,7 @@ public void CanAddContentToRegion()
         [Fact]
         public void CanRemoveContentFromRegion()
         {
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object view = new object();
 
             region.Add(view);
@@ -53,7 +53,7 @@ public void RemoveInexistentViewThrows()
         {
             var ex = Assert.Throws<ArgumentException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
                 object view = new object();
 
                 region.Remove(view);
@@ -67,7 +67,7 @@ public void RemoveInexistentViewThrows()
         public void RegionExposesCollectionOfContainedViews()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             object view = new object();
 
@@ -84,7 +84,7 @@ public void RegionExposesCollectionOfContainedViews()
         public void CanAddAndRetrieveNamedViewInstance()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object myView = new object();
             region.Add(myView, "MyView");
             object returnedView = region.GetView("MyView");
@@ -98,7 +98,7 @@ public void AddingDuplicateNamedViewThrows()
         {
             var ex = Assert.Throws<InvalidOperationException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 region.Add(new object(), "MyView");
                 region.Add(new object(), "MyView");
@@ -110,7 +110,7 @@ public void AddingDuplicateNamedViewThrows()
         public void AddNamedViewIsAlsoListedInViewsCollection()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object myView = new object();
 
             region.Add(myView, "MyView");
@@ -122,7 +122,7 @@ public void AddNamedViewIsAlsoListedInViewsCollection()
         [Fact]
         public void GetViewReturnsNullWhenViewDoesNotExistInRegion()
         {
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             Assert.Null(region.GetView("InexistentView"));
         }
@@ -133,7 +133,7 @@ public void GetViewWithNullOrEmptyStringThrows()
         {
             var ex = Assert.Throws<ArgumentException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 region.GetView(string.Empty);
             });
@@ -146,7 +146,7 @@ public void AddNamedViewWithNullOrEmptyStringNameThrows()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var ex = Assert.Throws<ArgumentException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 region.Add(new object(), string.Empty);
             });
@@ -157,7 +157,7 @@ public void AddNamedViewWithNullOrEmptyStringNameThrows()
         public void GetViewReturnsNullAfterRemovingViewFromRegion()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object myView = new object();
             region.Add(myView, "MyView");
             region.Remove(myView);
@@ -169,7 +169,7 @@ public void GetViewReturnsNullAfterRemovingViewFromRegion()
         public void AddViewPassesSameScopeByDefaultToView()
         {
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new MockDependencyObject();
 
@@ -183,7 +183,7 @@ public void AddViewPassesSameScopeByDefaultToNamedView()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new MockDependencyObject();
 
@@ -197,7 +197,7 @@ public void AddViewPassesDifferentScopeWhenAdding()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new MockDependencyObject();
 
@@ -212,7 +212,7 @@ public void CreatingNewScopesAsksTheRegionManagerForNewInstance()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new object();
 
@@ -226,7 +226,7 @@ public void AddViewReturnsExistingRegionManager()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new object();
 
@@ -239,7 +239,7 @@ public void AddViewReturnsExistingRegionManager()
         public void AddViewReturnsNewRegionManager()
         {
             var regionManager = new MockRegionManager();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.RegionManager = regionManager;
             var myView = new object();
 
@@ -251,7 +251,7 @@ public void AddViewReturnsNewRegionManager()
         [Fact]
         public void AddingNonDependencyObjectToRegionDoesNotThrow()
         {
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object model = new object();
 
             region.Add(model);
@@ -264,7 +264,7 @@ public void ActivateNonAddedViewThrows()
         {
             var ex = Assert.Throws<ArgumentException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 object nonAddedView = new object();
 
@@ -278,7 +278,7 @@ public void DeactivateNonAddedViewThrows()
         {
             var ex = Assert.Throws<ArgumentException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 object nonAddedView = new object();
 
@@ -292,7 +292,7 @@ public void ActivateNullViewThrows()
         {
             var ex = Assert.Throws<ArgumentNullException>(() =>
             {
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 region.Activate(null);
             });
@@ -305,7 +305,7 @@ public void AddViewRaisesCollectionViewEvent()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             bool viewAddedCalled = false;
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Views.CollectionChanged += (sender, e) =>
                                                   {
                                                       if (e.Action == NotifyCollectionChangedAction.Add)
@@ -325,7 +325,7 @@ public void ViewAddedEventPassesTheViewAddedInTheEventArgs()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             object viewAdded = null;
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Views.CollectionChanged += (sender, e) =>
                                                   {
                                                       if (e.Action == NotifyCollectionChangedAction.Add)
@@ -347,7 +347,7 @@ public void RemoveViewFiresViewRemovedEvent()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             bool viewRemoved = false;
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object model = new object();
             region.Views.CollectionChanged += (sender, e) =>
                                                   {
@@ -369,7 +369,7 @@ public void ViewRemovedEventPassesTheViewRemovedInTheEventArgs()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             object removedView = null;
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Views.CollectionChanged += (sender, e) =>
                                                   {
                                                       if (e.Action == NotifyCollectionChangedAction.Remove)
@@ -389,7 +389,7 @@ public void ShowViewFiresViewShowedEvent()
         {
             bool viewActivated = false;
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object model = new object();
             region.ActiveViews.CollectionChanged += (o, e) =>
                                                         {
@@ -408,7 +408,7 @@ public void ShowViewFiresViewShowedEvent()
         public void AddingSameViewTwiceThrows()
         {
             object view = new object();
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             try
@@ -430,7 +430,7 @@ public void AddingSameViewTwiceThrows()
         public void RemovingViewAlsoRemovesItFromActiveViews()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             object model = new object();
             region.Add(model);
             region.Activate(model);
@@ -445,7 +445,7 @@ public void RemovingViewAlsoRemovesItFromActiveViews()
         public void ShouldGetNotificationWhenContextChanges()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             bool contextChanged = false;
             region.PropertyChanged += (s, args) => { if (args.PropertyName == "Context") contextChanged = true; };
 
@@ -459,7 +459,7 @@ public void ChangingNameOnceItIsSetThrows()
         {
             var ex = Assert.Throws<InvalidOperationException>(() =>
             {
-                var region = new Region
+                var region = new Region(new ContentControl())
                 {
                     Name = "MyRegion"
                 };
@@ -566,7 +566,7 @@ public void NavigateDelegatesToIRegionNavigationService()
             try
             {
                 // Prepare
-                IRegion region = new Region();
+                IRegion region = new Region(new ContentControl());
 
                 object view = new object();
                 region.Add(view);
@@ -599,7 +599,7 @@ public void NavigateDelegatesToIRegionNavigationService()
         public void WhenViewsWithSortHintsAdded_RegionSortsViews()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             object view1 = new ViewOrder1();
             object view2 = new ViewOrder2();
@@ -619,7 +619,7 @@ public void WhenViewsWithSortHintsAdded_RegionSortsViews()
         public void WhenViewHasBeenRemovedAndRegionManagerPropertyCleared_ThenItCanBeAddedAgainToARegion()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new Region { RegionManager = new MockRegionManager() };
+            IRegion region = new Region(new ContentControl()) { RegionManager = new MockRegionManager() };
 
             var view = new MockFrameworkElement();
 
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionManagerFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionManagerFixture.cs
index 32aacd63bb..e6ec5abe98 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionManagerFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionManagerFixture.cs
@@ -237,8 +237,8 @@ public void WhenAddingRegions_ThenRegionsCollectionNotifiesUpdate()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new RegionManager();
 
-            var region1 = new Region { Name = "region1" };
-            var region2 = new Region { Name = "region2" };
+            var region1 = new Region(new ContentControl()) { Name = "region1" };
+            var region2 = new Region(new ContentControl()) { Name = "region2" };
 
             NotifyCollectionChangedEventArgs args = null;
             regionManager.Regions.CollectionChanged += (s, e) => args = e;
@@ -266,8 +266,8 @@ public void WhenRemovingRegions_ThenRegionsCollectionNotifiesUpdate()
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new RegionManager();
 
-            var region1 = new Region { Name = "region1" };
-            var region2 = new Region { Name = "region2" };
+            var region1 = new Region(new ContentControl()) { Name = "region1" };
+            var region2 = new Region(new ContentControl()) { Name = "region2" };
 
             regionManager.Regions.Add(region1);
             regionManager.Regions.Add(region2);
@@ -298,7 +298,7 @@ public void WhenRemovingNonExistingRegion_ThenRegionsCollectionDoesNotNotifyUpda
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
             var regionManager = new RegionManager();
 
-            var region1 = new Region { Name = "region1" };
+            var region1 = new Region(new ContentControl()) { Name = "region1" };
 
             regionManager.Regions.Add(region1);
 
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionNavigationServiceFixture.new.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionNavigationServiceFixture.new.cs
index f86ce03a98..54ba1c8e11 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/RegionNavigationServiceFixture.new.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/RegionNavigationServiceFixture.new.cs
@@ -19,7 +19,7 @@ public void WhenNavigating_ViewIsActivated()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string regionName = "RegionName";
@@ -55,7 +55,7 @@ public void WhenNavigatingWithQueryString_ViewIsActivated()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name + "?MyQuery=true", UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string regionName = "RegionName";
@@ -91,7 +91,7 @@ public void WhenNavigatingAndViewCannotBeAcquired_ThenNavigationResultHasError()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string otherType = "OtherType";
@@ -129,7 +129,7 @@ public void WhenNavigatingAndViewCannotBeAcquired_ThenNavigationResultHasError()
         public void WhenNavigatingWithNullUri_Throws()
         {
             // Prepare
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
 
             var containerMock = new Mock<IContainerExtension>();
             containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
@@ -157,7 +157,7 @@ public void WhenNavigatingWithNullUri_Throws()
         public void WhenNavigatingAndViewImplementsINavigationAware_ThenNavigatedIsInvokedOnNavigation()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<INavigationAware>();
             viewMock.Setup(ina => ina.IsNavigationTarget(It.IsAny<NavigationContext>())).Returns(true);
@@ -189,7 +189,7 @@ public void WhenNavigatingAndViewImplementsINavigationAware_ThenNavigatedIsInvok
         public void WhenNavigatingAndDataContextImplementsINavigationAware_ThenNavigatedIsInvokesOnNavigation()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             Mock<FrameworkElement> mockFrameworkElement = new Mock<FrameworkElement>();
             Mock<INavigationAware> mockINavigationAwareDataContext = new Mock<INavigationAware>();
@@ -224,7 +224,7 @@ public void WhenNavigatingAndDataContextImplementsINavigationAware_ThenNavigated
         public void WhenNavigatingAndBothViewAndDataContextImplementINavigationAware_ThenNavigatedIsInvokesOnNavigation()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             Mock<FrameworkElement> mockFrameworkElement = new Mock<FrameworkElement>();
             Mock<INavigationAware> mockINavigationAwareView = mockFrameworkElement.As<INavigationAware>();
@@ -266,7 +266,7 @@ public void WhenNavigating_NavigationIsRecordedInJournal()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string regionName = "RegionName";
@@ -306,7 +306,7 @@ public void WhenNavigating_NavigationIsRecordedInJournal()
         public void WhenNavigatingAndCurrentlyActiveViewImplementsINavigateWithVeto_ThenNavigationRequestQueriesForVeto()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<IConfirmNavigationRequest>();
             viewMock
@@ -342,7 +342,7 @@ public void WhenNavigatingAndCurrentlyActiveViewImplementsINavigateWithVeto_Then
         public void WhenNavigating_ThenNavigationRequestQueriesForVetoOnAllActiveViewsIfAllSucceed()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1Mock = new Mock<IConfirmNavigationRequest>();
             view1Mock
@@ -403,7 +403,7 @@ public void WhenNavigating_ThenNavigationRequestQueriesForVetoOnAllActiveViewsIf
         public void WhenRequestNavigateAwayAcceptsThroughCallback_ThenNavigationProceeds()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1Mock = new Mock<IConfirmNavigationRequest>();
             view1Mock
@@ -448,7 +448,7 @@ public void WhenRequestNavigateAwayAcceptsThroughCallback_ThenNavigationProceeds
         public void WhenRequestNavigateAwayRejectsThroughCallback_ThenNavigationDoesNotProceed()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1Mock = new Mock<IConfirmNavigationRequest>();
             view1Mock
@@ -493,7 +493,7 @@ public void WhenRequestNavigateAwayRejectsThroughCallback_ThenNavigationDoesNotP
         public void WhenNavigatingAndDataContextOnCurrentlyActiveViewImplementsINavigateWithVeto_ThenNavigationRequestQueriesForVeto()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewModelMock = new Mock<IConfirmNavigationRequest>();
             viewModelMock
@@ -533,7 +533,7 @@ public void WhenNavigatingAndDataContextOnCurrentlyActiveViewImplementsINavigate
         public void WhenRequestNavigateAwayOnDataContextAcceptsThroughCallback_ThenNavigationProceeds()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1DataContextMock = new Mock<IConfirmNavigationRequest>();
             view1DataContextMock
@@ -580,7 +580,7 @@ public void WhenRequestNavigateAwayOnDataContextAcceptsThroughCallback_ThenNavig
         public void WhenRequestNavigateAwayOnDataContextRejectsThroughCallback_ThenNavigationDoesNotProceed()
         {
             // Prepare
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var view1DataContextMock = new Mock<IConfirmNavigationRequest>();
             view1DataContextMock
@@ -626,7 +626,7 @@ public void WhenRequestNavigateAwayOnDataContextRejectsThroughCallback_ThenNavig
         [Fact]
         public void WhenViewAcceptsNavigationOutAfterNewIncomingRequestIsReceived_ThenOriginalRequestIsIgnored()
         {
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<IConfirmNavigationRequest>();
             var view = viewMock.Object;
@@ -678,7 +678,7 @@ public void WhenViewAcceptsNavigationOutAfterNewIncomingRequestIsReceived_ThenOr
         [StaFact]
         public void WhenViewModelAcceptsNavigationOutAfterNewIncomingRequestIsReceived_ThenOriginalRequestIsIgnored()
         {
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewModelMock = new Mock<IConfirmNavigationRequest>();
 
@@ -738,7 +738,7 @@ public void BeforeNavigating_NavigatingEventIsRaised()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string regionName = "RegionName";
@@ -782,7 +782,7 @@ public void WhenNavigationSucceeds_NavigatedIsRaised()
             object view = new object();
             Uri viewUri = new Uri(view.GetType().Name, UriKind.Relative);
 
-            IRegion region = new Region();
+            IRegion region = new Region(new ContentControl());
             region.Add(view);
 
             string regionName = "RegionName";
@@ -838,7 +838,7 @@ public void WhenTargetViewCreationThrowsWithAsyncConfirmation_ThenExceptionIsPro
                 .Setup(v => v.ConfirmNavigationRequest(It.IsAny<NavigationContext>(), It.IsAny<Action<bool>>()))
                 .Callback<NavigationContext, Action<bool>>((nc, c) => { navigationCallback = c; });
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
             region.Add(viewMock.Object);
             region.Activate(viewMock.Object);
 
@@ -859,7 +859,7 @@ public void WhenTargetViewCreationThrowsWithAsyncConfirmation_ThenExceptionIsPro
         public void WhenNavigatingFromViewThatIsNavigationAware_ThenNotifiesActiveViewNavigatingFrom()
         {
             // Arrange
-            var region = new Region();
+            var region = new Region(new ContentControl());
             var viewMock = new Mock<INavigationAware>();
             var view = viewMock.Object;
             region.Add(view);
@@ -896,7 +896,7 @@ public void WhenNavigationFromViewThatIsNavigationAware_OnlyNotifiesOnNavigateFr
 
             bool navigationFromInvoked = false;
 
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var viewMock = new Mock<INavigationAware>();
             viewMock
@@ -936,7 +936,7 @@ public void WhenNavigationFromViewThatIsNavigationAware_OnlyNotifiesOnNavigateFr
         public void WhenNavigatingFromActiveViewWithNavigatinAwareDataConext_NotifiesContextOfNavigatingFrom()
         {
             // Arrange
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var mockDataContext = new Mock<INavigationAware>();
 
@@ -974,7 +974,7 @@ public void WhenNavigatingFromActiveViewWithNavigatinAwareDataConext_NotifiesCon
         [Fact]
         public void WhenNavigatingWithNullCallback_ThenThrows()
         {
-            var region = new Region();
+            var region = new Region(new ContentControl());
 
             var navigationUri = new Uri("/", UriKind.Relative);
             IContainerExtension container = new Mock<IContainerExtension>().Object;
@@ -1019,7 +1019,7 @@ public void WhenNavigatingWithNullUri_ThenMarshallExceptionToCallback()
 
             RegionNavigationService target = new RegionNavigationService(container, contentLoader, journal)
             {
-                Region = new Region()
+                Region = new Region(new ContentControl())
             };
 
             Exception error = null;
@@ -1034,7 +1034,7 @@ public void WhenNavigatingWithNullUri_ThenMarshallExceptionToCallback()
         public void WhenNavigationFailsBecauseTheContentViewCannotBeRetrieved_ThenNavigationFailedIsRaised()
         {
             // Prepare
-            var region = new Region { Name = "RegionName" };
+            var region = new Region(new ContentControl()) { Name = "RegionName" };
 
             var containerMock = new Mock<IContainerExtension>();
             containerMock.Setup(x => x.Resolve(typeof(IRegionNavigationJournalEntry))).Returns(new RegionNavigationJournalEntry());
@@ -1076,7 +1076,7 @@ public void WhenNavigationFailsBecauseTheContentViewCannotBeRetrieved_ThenNaviga
         public void WhenNavigationFailsBecauseActiveViewRejectsIt_ThenNavigationFailedIsRaised()
         {
             // Prepare
-            var region = new Region { Name = "RegionName" };
+            var region = new Region(new ContentControl()) { Name = "RegionName" };
 
             var view1Mock = new Mock<IConfirmNavigationRequest>();
             view1Mock
@@ -1136,7 +1136,7 @@ public void WhenNavigationFailsBecauseActiveViewRejectsIt_ThenNavigationFailedIs
         public void WhenNavigationFailsBecauseDataContextForActiveViewRejectsIt_ThenNavigationFailedIsRaised()
         {
             // Prepare
-            var region = new Region { Name = "RegionName" };
+            var region = new Region(new ContentControl()) { Name = "RegionName" };
 
             var viewModel1Mock = new Mock<IConfirmNavigationRequest>();
             viewModel1Mock
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/SelectorRegionAdapterFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/SelectorRegionAdapterFixture.cs
index b494b5750a..bc89210162 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/SelectorRegionAdapterFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/SelectorRegionAdapterFixture.cs
@@ -108,9 +108,9 @@ public TestableSelectorRegionAdapter()
             }
 
 
-            protected override IRegion CreateRegion()
+            protected override IRegion CreateRegion(object regionTarget)
             {
-                return new Region();
+                return new Region(regionTarget);
             }
         }
     }
diff --git a/tests/Wpf/Prism.Wpf.Tests/Regions/SingleActiveRegionFixture.cs b/tests/Wpf/Prism.Wpf.Tests/Regions/SingleActiveRegionFixture.cs
index 6850578d37..fb0b8db80e 100644
--- a/tests/Wpf/Prism.Wpf.Tests/Regions/SingleActiveRegionFixture.cs
+++ b/tests/Wpf/Prism.Wpf.Tests/Regions/SingleActiveRegionFixture.cs
@@ -11,7 +11,7 @@ public class SingleActiveRegionFixture
         public void ActivatingNewViewDeactivatesCurrent()
         {
             ContainerLocator.SetContainerExtension(Mock.Of<IContainerExtension>());
-            IRegion region = new SingleActiveRegion();
+            IRegion region = new SingleActiveRegion(new ContentControl());
             var view = new object();
             region.Add(view);
             region.Activate(view);