Ok so I was just involved in a war with my most powerful vassal, and she eventually surrendered and was imprisoned. Time to revoke some titles. The only problem is, she has two duchess titles, Skane (Three or so counties right next to Denmark) and Lithuane (one country over in the land of too-far-to-give-a-crap). However, whenever I try to revoke the Duchy of Skane, all of the counties I should be getting immediately switch to being ruled under the county of Lithuane, and vice-versa. Now I'm not going to submit the obvious complaint that I should be able to revoke all titles after she rebelled, but surely she shouldn't be able to keep all of her lands after forcing me into a very expensive and time-consuming war just because she happens to have some piddly piece of doo-doo land in Eastern Europe. Is this a bug or just an extremely unfair and obnoxious loophole, and in any case, how should I proceed?