My question: I'm playing as the king of Scotland. I waited until England was fighting a succession war (old king died, old king's brother went to war with king's son (new king)). Once that happened, I decided to request an invasion CB from the pope, and got it. So I invaded England. During this time, their succession war ended (the old king's son won, so he kept the throne). I eventually beat them and got the throne of England myself.
England's Crown Authority is Max (has been since before I invaded). However, a bunch of the English dukes started fighting each other over titles. Shouldn't this not be able to happen? England is still under Absolute Crown Authority.
Scotland is under Medium Crown Authority, which should ALSO mean vassals can't fight each other, so that's not the reason...
Why are my English vassals able to declare war on each other if both Scotland and England's crown authority is high enough to not allow vassals to fight each other?
Note: It's my English vassals that are fighting other English vassals. Scottish vassals are nice and peaceful.