Theon Greyjoy

Prince Theon Greyjoy was the youngest son of King Balon Greyjoy of the Iron Islands and his wife Alannys Greyjoy, and the younger brother of Rodrik, Maron, and Yara Greyjoy. He is also the late husband of Isla Stark and the father of her daughter, Elana Greyjoy.

Following his father's failed rebellion against the Iron Throne, Theon is taken as a ward (initially hostage) to Lord Eddard Stark of Winterfell, and became the husband of his eldest daughter, Isla. After Eddard's execution in King's Landing, Theon pledges his loyalty to Eddard's eldest son, King Robb Stark, in the subsequent War of the Five Kings, but ultimately betrays Robb and sides with his father in invading the North. 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 his wife, Isla 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 via Kingsmoot. 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. While Yara sails to retake the Iron Islands, Theon returns to Winterfell with a group of ironborn to fight for House Stark in the Great War. Theon perishes defending Bran from the Night King during the Battle of Winterfell, redeeming himself at last.

Biography
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Season 8