When you confederate a faction, the settlement garrison gets set to almost dead and they do not heal and there's no way to make them heal without the settlement getting razed and you recolonizing it.
Also... I have several Prophetesses named "Bertrand".
The religious errantries are also war-dec'ing on me as soon as I meet them despite being allied with all mainland bretonnian factions with very high reliability and like 300 chivalry.
So after I let everything be razed other than Bordeleaux I can actually kinda play the game a bit... you know... off killing knights of origo and repanse instead of monsters.