who is theon greyjoy's brother
âBalon Greyjoy. King Balon Greyjoy is a recurring character in the second, third and sixth seasons. Balon Greyjoy is the Lord Reaper of Pyke and the head of House Greyjoy. He is the father of Yara and Theon Greyjoy, and the older brother of Euron, and Aeron Damphair Greyjoy.