Gerion Lannister was a son of Tytos and Jeyne Lannister and a younger brother of Tywin and Kevan Lannister. In the A Song of Ice and Fire novels, Gerion's genealogy and relation to the other Lannisters are the same. Gerion has never been married. He has one bastard daughter, Joy Hill. Of all his uncles, Tyrion liked Gerion the best, and used to call him "uncle Gery". Gerion had a stormy The highly-anticipated Game of Thrones prequel series House of the Dragon closes out its first season on HBO Oct. 23, leaving everyone eager to find out how the brewing Targaryen civil war (a.k.a KKyYd4.