Tommen Baratheon from A Storm of Swords is the youngest son of Cersei Lannister. Though the realm believes him to be the son of Robert Baratheon and Cersie, the truth is that he is the product of an incestuous relationship between Jaime and his sister Cersei (as are all of the children supposedly belonging to Robert Baratheon). Tommen suceeds Joffrey when Joffrey is murdered. He is a nicer person than his brother and easy to manipulate.
