that might get messy but i would be up to figure it out if that's the way we wanna go. thinking something along the lines of one person had control and got pushed out decades ago with their progeny taking over in their stay. skip to current, the original ruler comes back, wants control but the progeny is happy as 'king/queen'. two factions start to war against one another, defining territory lines. the factions could have any sort of supernatural so it wouldn't be wolves vs vamps or anything. but those loyal to the old ruler and the new one