CharacterMyrcella BaratheonFemaleb. In 290 AC, at King's LandingTitlesPrincessAppears inA Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, A Dance with DragonsPlayed byAimee Richardson, Nell Tiger FreeRelationshipsHouse House Baratheon of King's LandingParents Cersei Lannister, Jaime Lannister, Robert I BaratheonSiblings Barra, Bella, Edric Storm, Gendry, Joffrey Baratheon, Mya Stone, Tommen BaratheonHeir to House Baratheon of King's Landing, House Baratheon of Storm's End