These are some general rules you guys should all be aware of because of some confusion and such.
1) All heirs are males, just for the sake of historical accuracy.
2) All royals should be married by Young Adult (10/50 days) this would be about 18 or 19.
3) When an heir takes the throne, if he is born of two houses, he can choose which house is the ruling house.
4) Royals can not be half-breeds or practice magic, it is looked down upon.
5) I'll think of more as we go....