It goes to his little brother but Grandad will rule as steward till of age,
he has a little brother? I don't recall that. I know that Stannis is the rightful heir, but also Robert Baratheon had a ton of children but Joffrey had them all killed but one so he'd be next in line.
I think it was grandad that off'd Joffrey. He didn't fight all those wars and killed all those people so that Joff could piss it all away. Grandad knew that Joffrey would fuck it all up. Old cunning man had Jamie kill the previous king as well and probably had a hand in Baratheon being killed.
Kind of upset though that a whole episode passed and no titties were shown.