diff --git a/src/EFCore.Cosmos/Query/Internal/CosmosShapedQueryCompilingExpressionVisitor.CosmosProjectionBindingRemovingExpressionVisitorBase.cs b/src/EFCore.Cosmos/Query/Internal/CosmosShapedQueryCompilingExpressionVisitor.CosmosProjectionBindingRemovingExpressionVisitorBase.cs
index 97fd77c36fc..aec0acbebad 100644
--- a/src/EFCore.Cosmos/Query/Internal/CosmosShapedQueryCompilingExpressionVisitor.CosmosProjectionBindingRemovingExpressionVisitorBase.cs
+++ b/src/EFCore.Cosmos/Query/Internal/CosmosShapedQueryCompilingExpressionVisitor.CosmosProjectionBindingRemovingExpressionVisitorBase.cs
@@ -368,18 +368,23 @@ private void AddInclude(
             var navigationExpression = Visit(includeExpression.NavigationExpression);
 
             shaperExpressions.Add(
-                Expression.Call(
-                    includeMethod.MakeGenericMethod(includingClrType, relatedEntityClrType),
-                    entityEntryVariable,
-                    instanceVariable,
-                    concreteEntityTypeVariable,
-                    navigationExpression,
-                    Expression.Constant(navigation),
-                    Expression.Constant(inverseNavigation, typeof(INavigation)),
-                    Expression.Constant(fixup),
-                    Expression.Constant(initialize, typeof(Action<>).MakeGenericType(includingClrType)),
+                Expression.IfThen(
+                    Expression.Call(
+                        Expression.Constant(navigation.DeclaringEntityType, typeof(IReadOnlyEntityType)),
+                        IsAssignableFromMethodInfo,
+                        Expression.Convert(concreteEntityTypeVariable, typeof(IReadOnlyEntityType))),
+                    Expression.Call(
+                        includeMethod.MakeGenericMethod(includingClrType, relatedEntityClrType),
+                        entityEntryVariable,
+                        instanceVariable,
+                        concreteEntityTypeVariable,
+                        navigationExpression,
+                        Expression.Constant(navigation),
+                        Expression.Constant(inverseNavigation, typeof(INavigation)),
+                        Expression.Constant(fixup),
+                        Expression.Constant(initialize, typeof(Action<>).MakeGenericType(includingClrType)),
 #pragma warning disable EF1001 // Internal EF Core API usage.
-                    Expression.Constant(includeExpression.SetLoaded)));
+                        Expression.Constant(includeExpression.SetLoaded))));
 #pragma warning restore EF1001 // Internal EF Core API usage.
         }
 
@@ -562,6 +567,9 @@ private static readonly MethodInfo PopulateCollectionMethodInfo
             = typeof(CosmosProjectionBindingRemovingExpressionVisitorBase).GetTypeInfo()
                 .GetDeclaredMethod(nameof(PopulateCollection));
 
+        private static readonly MethodInfo IsAssignableFromMethodInfo
+            = typeof(IReadOnlyEntityType).GetMethod(nameof(IReadOnlyEntityType.IsAssignableFrom), new[] { typeof(IReadOnlyEntityType) })!;
+
         private static TCollection PopulateCollection<TEntity, TCollection>(
             IClrCollectionAccessor accessor,
             IEnumerable<TEntity> entities)
diff --git a/test/EFCore.Cosmos.FunctionalTests/Query/OwnedQueryCosmosTest.cs b/test/EFCore.Cosmos.FunctionalTests/Query/OwnedQueryCosmosTest.cs
index 43a864c5642..7182672445e 100644
--- a/test/EFCore.Cosmos.FunctionalTests/Query/OwnedQueryCosmosTest.cs
+++ b/test/EFCore.Cosmos.FunctionalTests/Query/OwnedQueryCosmosTest.cs
@@ -829,6 +829,10 @@ protected override void OnModelCreating(ModelBuilder modelBuilder, DbContext con
 
             modelBuilder.Entity<Fink>().HasData(
                 new { Id = 1, BartonId = 1 });
+
+            modelBuilder.Entity<Balloon>();
+            modelBuilder.Entity<HydrogenBalloon>().OwnsOne(e => e.Gas);
+            modelBuilder.Entity<HeliumBalloon>().OwnsOne(e => e.Gas);
         }
     }
 }
diff --git a/test/EFCore.Specification.Tests/Query/OwnedQueryTestBase.cs b/test/EFCore.Specification.Tests/Query/OwnedQueryTestBase.cs
index 85eb3469f4d..d9cbbd34565 100644
--- a/test/EFCore.Specification.Tests/Query/OwnedQueryTestBase.cs
+++ b/test/EFCore.Specification.Tests/Query/OwnedQueryTestBase.cs
@@ -15,6 +15,43 @@ protected OwnedQueryTestBase(TFixture fixture)
         fixture.ListLoggerFactory.Clear();
     }
 
+    [ConditionalTheory] // Issue #26257
+    [MemberData(nameof(IsAsyncData))]
+    public virtual async Task Can_query_owner_with_different_owned_types_having_same_property_name_in_hierarchy(bool async)
+    {
+        using (var context = CreateContext())
+        {
+            context.Add(new HeliumBalloon
+            {
+                Id = Guid.NewGuid().ToString(),
+                Gas = new Helium(),
+            });
+
+            context.Add(new HydrogenBalloon
+            {
+                Id = Guid.NewGuid().ToString(),
+                Gas = new Hydrogen()
+            });
+
+            _ = async ? await context.SaveChangesAsync() : context.SaveChanges();
+        }
+
+        using (var context = CreateContext())
+        {
+            var balloons = async
+                ? await context.Set<Balloon>().ToListAsync()
+                : context.Set<Balloon>().ToList();
+
+            Assert.NotEmpty(balloons);
+            var heliumBalloons = balloons.OfType<HeliumBalloon>().ToList();
+            var hydrogenBalloons = balloons.OfType<HydrogenBalloon>().ToList();
+            Assert.Equal(heliumBalloons.Count, hydrogenBalloons.Count);
+
+            Assert.All(heliumBalloons, b => Assert.IsType<Helium>(b.Gas));
+            Assert.All(hydrogenBalloons, b => Assert.IsType<Hydrogen>(b.Gas));
+        }
+    }
+
     [ConditionalTheory]
     [MemberData(nameof(IsAsyncData))]
     public virtual Task Query_with_owned_entity_equality_operator(bool async)
@@ -1465,6 +1502,10 @@ protected override void OnModelCreating(ModelBuilder modelBuilder, DbContext con
 
             modelBuilder.Entity<Fink>().HasData(
                 new { Id = 1, BartonId = 1 });
+
+            modelBuilder.Entity<Balloon>();
+            modelBuilder.Entity<HydrogenBalloon>().OwnsOne(e => e.Gas);
+            modelBuilder.Entity<HeliumBalloon>().OwnsOne(e => e.Gas);
         }
 
         public override DbContextOptionsBuilder AddOptions(DbContextOptionsBuilder builder)
@@ -1939,4 +1980,29 @@ protected class Throned
         public int Value { get; set; }
         public string Property { get; set; }
     }
+
+    protected abstract class Balloon
+    {
+        public string Id { get; set; }
+    }
+
+    protected class Helium
+    {
+        public int X { get; set; }
+    }
+
+    protected class Hydrogen
+    {
+        public int Y { get; set; }
+    }
+
+    protected class HeliumBalloon : Balloon
+    {
+        public Helium Gas { get; set; }
+    }
+
+    protected class HydrogenBalloon : Balloon
+    {
+        public Hydrogen Gas { get; set; }
+    }
 }
diff --git a/test/EFCore.SqlServer.FunctionalTests/Query/TemporalOwnedQuerySqlServerTest.cs b/test/EFCore.SqlServer.FunctionalTests/Query/TemporalOwnedQuerySqlServerTest.cs
index 6a073bfb66f..adb012050ac 100644
--- a/test/EFCore.SqlServer.FunctionalTests/Query/TemporalOwnedQuerySqlServerTest.cs
+++ b/test/EFCore.SqlServer.FunctionalTests/Query/TemporalOwnedQuerySqlServerTest.cs
@@ -1686,6 +1686,10 @@ protected override void OnModelCreating(ModelBuilder modelBuilder, DbContext con
             modelBuilder.Entity<Fink>()
                 .ToTable(tb => tb.IsTemporal())
                 .HasData(new { Id = 1, BartonId = 1 });
+
+            modelBuilder.Entity<Balloon>();
+            modelBuilder.Entity<HydrogenBalloon>().OwnsOne(e => e.Gas);
+            modelBuilder.Entity<HeliumBalloon>().OwnsOne(e => e.Gas);
         }
 
         protected override void Seed(PoolableDbContext context)