I seem to remember Tom saying something or other about why he didn't want dukes to be able to give regions to other duchies, but I really can't remember.
If the region had reverted back to its previous duchy, that would have caused no problem. The issue here is that it reverted to the closest contiguous duchy instead of going for historical links. I understand that would probably be hard to code though.
At the moment, I've entered the Lordhip election, crossing my finger that this will move the region in my duchy and not drop the Duke title. Let's see.
