All the Kings and Queens of Westeros
A Complete History of the 21 Kings and 2 Queens That Ruled Westeros
21
With all of her children dead and other potential claimants out of the way, Cersei seizes the throne for herself and becomes the first recognised queen to reign on the Iron Throne. Her reign is largely about consolidating her own power, seeking revenge, and fending off the growing threat from Daenerys Targaryen. She lies about sending troops to help fend off the White Walkers, planning instead to let them fight it out and then wipe out the weakened survivors. Instead, the alliance in the North wins and marches south, and Cersei's cruelty winds up being the tipping point to send Daenerys into full-fledged Targaryen violence and madness.
Cersei is killed during the sack of King's Landing when Jaime comes to find her but is unable to get them out in time.