Game of Thrones

[Beaker]

Now that Stannis has killed Shireen, that leaves him as the last of the Baratheon line. Yes, Tommen and his sister are considered Baratheons, but are bastards that may eventually be found out. Unless Stannis has another child, the Baratheon line dies with him.

Also, the Targyreon line is in trouble. Jon Snow may have Targyreon blood, but is a bastard also. Remeber Dany is barren after the witch cursed her and will have no more children. And unless the missing Aegon shows up. Her line will die with her also.