If some units rout and are able to retreat in to a territory that has an unoccupied castle or stronghold, does that castle count as captured immediately? Or do you need to wait until the next turn when the routed units are able to 'stand up' again?
The reason I ask is that on the final turn (i.e. no chance for routed units to stand), this ruling can have an effect on the number of castles and hence, who wins the game