So I started a game as Polotsk and did a major land grab against the pagans to create the Kingdom of Lithuania. As my demense got bigger, I gave counties and duchies to mayors that liked me a lot. However they continued being the mayor plus carrying the count or duke title of a completely different title. Now I have very weird duchies/counties whose title will include a random city in another county. I am trying to fix it so I can get everything lined up the way it's supposed to be. However I have these mayors that are also dukes so I can't make them vassals of another duke. The only way I can think of is to strip mayoral titles from my dukes and give them to courtiers but that will just lead to everyone getting royally pissed and my kingdom fracturing. Is there a way to fix this without causing a surefire rebellion? Thanks.