Myrcella Baratheon is the princess of Westeros, sister to Joffrey and Tommen. She, with her brothers, is thought to be the daughter of Cersei Lannister and Robert Baratheon, but is actually the offspring of Cersei and her brother Jaime Lannister. In A Clash of Kings, Myrcella is sent to Dorne, with member of the Kingsguard Ser Arys Oakheart, as ward and captive to help secure the Iron Throne for Joffrey. In A Feast for Crows, Arianne Martell attempts to take her from Dorne and her father, but fails; Myrcella is injured and Oakheart is killed.