Theon Greyjoy. He is the son and heir apparent of Lord, later King, Balon Greyjoy. At the end of the Greyjoy Rebellion, Theon was taken as a hostage and ward to Eddard (Ned) Stark. (http://gameofthrones.wikia.com/wiki/Theon_Greyjoy)
# Volantene whore (The Broken Man) She entertains Yara Greyjoy while Theon Greyjoy sits across the table, sulking. She steps away so they can talk. Yara rejoins her a few minutes later and they make their way to a private room. - Game of Thrones Wiki - Wikia
Theon Greyjoy is the only living son and heir of Lord Balon Greyjoy of the Iron Islands, and.