What happens in a marriage like Tyrion’s (to Tysha) where the groom in question is more able bodied and his lord father isn’t a psycho? Like with Duncan, but with no crown at stake? Would such a marriage cause disinheritance from a Great House? How much right does a lord have to disinherit a son? Could an adult or teen heir appeal or otherwise fight it? What if he has a kid but the marriage is annulled? Can such a kid be disinherited even if the dad/groom isn’t, like Franz Ferdinand’s kids?