Replying...
Intro. Lord Tywin Lannister was head of House Lannister and, as such, Lord of Casterly Rock, Shield of Lannisport and Warden of the West. He served as Hand of the King to Aerys II Targaryen for almost twenty years, a position he later held again during the reigns of his grandsons Joffrey and Tommen Baratheon. He was married to his cousin, Lady Joanna Lannister, with whom he had three children, Jaime, Cersei and Tyrion

Tywin Lannister

@Cecilia Venier Baffo