you could also go in this direction:
barbarians are clannish people, so are monsters.
there could be wars, declared by a covenant in league with a certain monster group against your own house.
like: the shadow league and the orcs forge an alliance to raid my house. spies could inform me of this. (i.e. a quest i need to stop a meeting between two bosses, but one of them is the leader of the brotherhood of steel)
the wandering recruit died...