I'm playing as House Bamburgh based in Northumberland.
So I married off my (preferred) heir to a countess, hoping to inherit her lands. Then she goes off and makes him heir of a bishopric. I've killed her, invited him to my court, and given him land. Nothing seems to be working. Is there a way out of this?
Another thing, I made a bastard with a princess of Norway and he inherited her claim. At the time Norway was ruled by Sweden, but when every single Swedish vassal rebelled at once I decided to try pressing his claim (hilariously mirroring real Norwegian history). It worked, but now the country is divided between three dukes. Shouldn't his being the de jure king of Norway let him press claims on these people? He has no casus belli on any of them.
The title is a cultural reference most Norwegians should get.