diff --git a/hibernate-core/src/main/java/org/hibernate/mapping/PersistentClass.java b/hibernate-core/src/main/java/org/hibernate/mapping/PersistentClass.java
index bce17caa6c..14ad02841e 100644
--- a/hibernate-core/src/main/java/org/hibernate/mapping/PersistentClass.java
+++ b/hibernate-core/src/main/java/org/hibernate/mapping/PersistentClass.java
@@ -358,9 +358,6 @@ public abstract class PersistentClass implements IdentifiableTypeClass, Attribut
 
 	public abstract List<KeyValue> getKeyClosure();
 
-	@Deprecated(since = "6.0") @Remove
-	public abstract Iterator<KeyValue> getKeyClosureIterator();
-
 	protected void addSubclassProperty(Property prop) {
 		subclassProperties.add( prop );
 	}
diff --git a/hibernate-core/src/main/java/org/hibernate/mapping/RootClass.java b/hibernate-core/src/main/java/org/hibernate/mapping/RootClass.java
index 583bbf7f64..3496c0020f 100644
--- a/hibernate-core/src/main/java/org/hibernate/mapping/RootClass.java
+++ b/hibernate-core/src/main/java/org/hibernate/mapping/RootClass.java
@@ -141,11 +141,6 @@ public class RootClass extends PersistentClass implements TableOwner {
 		return List.of( getTable() );
 	}
 
-	@Override @Deprecated
-	public Iterator<KeyValue> getKeyClosureIterator() {
-		return new SingletonIterator<>( getKey() );
-	}
-
 	@Override
 	public List<KeyValue> getKeyClosure() {
 		return List.of( getKey() );
diff --git a/hibernate-core/src/main/java/org/hibernate/mapping/Subclass.java b/hibernate-core/src/main/java/org/hibernate/mapping/Subclass.java
index de33283815..1a968f630c 100644
--- a/hibernate-core/src/main/java/org/hibernate/mapping/Subclass.java
+++ b/hibernate-core/src/main/java/org/hibernate/mapping/Subclass.java
@@ -16,7 +16,6 @@ import org.hibernate.engine.OptimisticLockStyle;
 import org.hibernate.internal.FilterConfiguration;
 import org.hibernate.internal.util.collections.JoinedIterator;
 import org.hibernate.internal.util.collections.JoinedList;
-import org.hibernate.internal.util.collections.SingletonIterator;
 import org.hibernate.persister.entity.EntityPersister;
 
 /**
@@ -138,14 +137,6 @@ public class Subclass extends PersistentClass {
 		);
 	}
 
-	@Override @Deprecated
-	public Iterator<KeyValue> getKeyClosureIterator() {
-		return new JoinedIterator<>(
-				getSuperclass().getKeyClosureIterator(),
-				new SingletonIterator<>( getKey() )
-			);
-	}
-
 	@Override
 	public List<KeyValue> getKeyClosure() {
 		return new JoinedList<>(