If Aegon is dead, the next in line would be his son, Jaehaerys II. Because of Jaehaerys’ youth, however, the actual governing would likely be done by his mother Helaena (Phia Saban) until Jaeherys comes of age, sort of like how Cersei in “Game of Thrones” served as Tommen’s Queen Regent. This is complicated by two unfortunate factors. The first is that Helaena doesn’t seem to have any interest or ability in governing, so her mother Alicent (Olivia Cooke) or grandfather Otto Hightower (Rhys Ifans) would likely take her place. The second and much bigger one is that, well, Jaehaerys II is dead, having been killed by Blood and Cheese in the season 2 premiere.

In the absence of a son for Aegon to pass the title down to, and with the Greens’ whole claim to the throne relying on the idea that a woman can’t hold the title, that would give the crown over to the late King Viserys’ second oldest son, Aemond. Because Aemond is actually somewhat competent, though, this would be terrible news for Team Black. 

If something were to then happen to Aemond, the title would be passed along to Daeron Targaryen, the so-far unseen third son of King Viserys. He’s been chilling in Oldtown this whole time, reading books and squiring for Lord Ormund Hightower. Daeron is one of the more popular Targaryens among “Fire & Blood” readers, as he’s one of the only characters on Team Green who’s more interested in getting things done than stirring up more drama. He’d make the best king out of anyone on his side of the family. Unfortunately, it would take a lot of tragedy for him to reach such a position.