Ambitious and complicated, Cersei Lannister is the elder twin sister of Jaime and the only daughter of Tywin and Joanna. As a young woman, she's given a prophecy that defines her life: that she would marry a king (not a prince), that her children would die, and that a younger and more beautiful queen would eventually take her place.
From a young age, Cersei has an incestuous relationship with her twin brother, Jaime, producing three children who are widely believed to be the product of her marriage to King Robert Baratheon. Cersei schemes to build power for herself in a world where women are largely confined to the role of wife and mother — willingly or not. She's one of the driving forces behind House Lannister's power plays, and as her sons Joffrey and Tommen take the throne successively, she is the real power behind the throne. After the death of Tommen (the last of her children surviving), she takes the throne for herself.
As Queen, Cersei's priority is consolidating power to fight off their many enemies. She feigns interest in an alliance against the White Walkers but secretly plans to let them all fight it out, then conquer the weakened survivors. She's shocked, then, when the combined forces — including Jaime — return victorious. Alongside Jaime, Cersei is killed in the destruction of King's Landing, buried beneath the rubble of the Red Keep.
