Following his father's failed rebellion against the Iron Throne , Theon is taken as a ward initially hostage to Lord Eddard Stark of Winterfell.
Theon takes Winterfell from Robb's brother, Bran , but eventually is betrayed by his own men, which leads to his capture by House Bolton. He is tortured and forced into servitude by Ramsay Snow , who turns him into a broken pet named Reek.
Theon, however, redeems himself by helping Ramsay's wife and Robb's sister , Sansa Stark , escape from Winterfell and find refuge with her "half-brother" Jon Snow.
The two later retake Winterfell, defeating Ramsay and House Bolton. Slowly returning to his former self, Theon returns to the Iron Islands, where he learns of his father's death at the hands of his uncle, Euron Greyjoy , who is later elected King of the Iron Islands at the kingsmoot on Old Wyk.
In retaliation, Theon flees with Yara to seek out an alliance with Daenerys Targaryen in Meereen , where they pledge their forces to her. Despite abandoning Yara during the assault on the Targaryen fleet , he later appeals to the remaining Ironborn on Dragonstone to rescue her from Euron's custody, a mission they complete successfully. Theon perishes defending Bran from the Night King during the Battle of Winterfell , redeeming himself at last. Theon was born at Pyke. Eight years before the start of the series Balon rose in rebellion against the Iron Throne.
