Use one region in multiple view

[cocofaivre]

Hi everyone,

I create a region with the RegionManager and I register 3 views for this region.

_regionManager.RegisterViewWithRegion("MyRegion", typeof(FirstView));
_regionManager.RegisterViewWithRegion("MyRegion", typeof(SecondView));
_regionManager.RegisterViewWithRegion("MyRegion", typeof(ThirdView));

After, I would like to use "MyRegion" in two different views (MainFirstView and MainSecondView)
I create ContentControl with region name in MainFirstView.xaml and MainSecondView.xaml :

<ContentControl x:Name="MyContent" prism:RegionManager.RegionName="MyRegion"></ContentControl>

But I have this error when opened MainSecondView:
Prism.Regions.Behaviors.RegionCreationException: An exception occurred while creating a region with name 'MyRegion'. The exception was: System.ArgumentException: Region with the given name is already registered: MyRegion

I would like to know if this is possible to have one region, which can be used in multiple view ?

Thank's for your response