- Города и замки имеют запасные выходы, через которые игрок может проникнуть во время осады (на союзные юниты не распространяется, они пользуются только башнями и лестницами)

Digging through the script files, it appears that Kings are set to keep at least one unassigned fief.  In my game, they keep the village unassigned, even when there are landless lords hanging around the capital.  As long as the village is unassigned, the castle won't produce rent.  It doesn't appear, after 6 months in game, that they will ever assign that village once they decide to keep it in reserve.  I put in a bug report but didn't get any response.  I think a fix will have to involve changing up the scripts for rent collecting and for the King's fief distribution behavior.