Okay, this is more of a bug, but I am torn between rage against the machine (must not throw new flatscreen monitor through the window) and bitter tears:
So here's the story: I started as Ramon Berenguer I of Barcelona. I send my idiot son to Tuscany with the single mission of producing grandchildren. My daughter in law Matilda of course decides to go independent. So she gives the aforementioned idiot son a sword and tells him to defend Brescia from the imperial doomstacks. And this is 1072, and those doomstacks are BIG. First battle he gets captured. Okay, in 1.05g the AI just likes to let your dynasty members rot in prison but the HRE with its free investiture laws does something even worse: he forces poor idiot Pere de Barcelona to become the PRINCE-BISHOP OF RAVENNA! Poor Pere remains in prison in Franconia the rest of his life, but he is also prince-bishop of one of the richest cities in northern Italy.
A fluke, I say to myself, then this happens: my grandson Ramon Berenguer II inherits. He is Italian but otherwise not too bad. His mother who has somehow sprung herself from prison in Germany and run home to Florence has now raised the banner of rebellion again. I think, okay, need to help mommy and moreover most of imperial Italy is now in rebellion, so maybe we won't be doomstacked back to Barcelona. So I go over and mobilize my own levies to do so. Then the 25k doomstacks arrive, and I get owned. But as the flower of Catalan chivalry runs away like a cat down an alley with twenty rabid, mangy rottweilers behind it, my rearguard gets it in the rear. My cousin Arnau gets dragged back to Franconia. And it happens AGAIN:
Arnau is a good knight to be sure, loyal and knows how to poke 'em with the pointy end and all, but he's no intellectual giant. Sure he can read and all, with 5 Learning, but why is he the one to be Prince-Bishop of Ravenna. Is this a title reserved for Catalan POWs? :angry:
I sprung him from prison for 10 gold, but there was no way to remove him from the list of successors to the bishopric of Ravenna. He, his wife, and son all toddled off to his new post, and I could do nothing about it. The HRE is free investiture, and Aragon is papal investiture, but that had no effect whatsoever.