How exactly does these work? What governs who controls a given title? After someone becomes a vassal to someone else do they have to get a border pop in a nearby city to get control over a title that they should have had? Are these rules different for warlords and bts? Voluntarily vassals, how can these be broken? By who? What about unvoluntarily vassals? Can these be broken? If so how? How does vassals in mp work? It doesn't seem like the normal pop and territory rules applies..