Daemion Targaryen
Daemion Targaryen was Lord of Dragonstone and head of House Targaryen, the third son of Lord Aerys Targaryen. He inherited the title from his brother Baelon and passed it on to his own son, Aerion, who succeeded him as ruler of the island.
Chapter 1
Lord of Dragonstone
Books only
Daemion was the third of Lord Aerys Targaryen's sons and came to hold Dragonstone after the death of his brother Baelon, who had held it before him.
He had a son, Aerion, who inherited the title from him. According to semi-canonical sources, neither Daemion nor Aerion showed much interest in anything beyond the bounds of their island.