I am playing as Navarre and the King of England is my vassal. The ruler is the same culture and same dynasty as me. Unfortunately an English Duke has revolted, claiming the Kingdom as his own. The warscore is at 99% in the rebel's favour and there's not a thing I can do. I am not permitted to join his war. This new King hates my guts due to the "Foreigner" modifier and I also lose the +5 same dynasty modifier. I am thinking of granting this new English King independence so that I can press the claim of my kinsman, the old King. Alternatively I can revoke his title, but that would mean getting negative vassal opinion unless my spymaster finds him doing something he's not supposed to be doing. Thoughts?