Intro. Cersei Lannister is one of the central and complex characters of Game of Thrones, introduced as the beautiful, but cruel and manipulative Queen consort of the Seven Kingdoms, married to King Robert Baratheon, daughter of Tywin Lannister and twin sister of Jaime, as well as mother of Joffrey, Myrcella and Tommen. Driven by the desire for power, a deep love for her children and a hatred for her brother Tyrion, her journey is marked by intrigue, ambition, revenge and a belief in her own destiny, often blinding her to true threats, culminating in her tragic rise and fall. Who is Cersei Lannister? Origin: Firstborn daughter of Tywin Lannister, of Casterly Rock, and twin sister of Jaime. Marriage: After Robert's Rebellion, she marries King Robert Baratheon, becoming Queen. Children: Mother of Joffrey, Myrcella and Tommen Baratheon, the children she fiercely defends. Personality: Cold, ambitious, cruel, vain, and with a view that it is better to be feared than loved, similar to his father