Cersei Lannister appears in a series that was written by an author from the United States.
Cersei Lannister . In the story , Cersei Lannister , Queen of the Seven Kingdoms of Westeros , is the wife of King Robert Baratheon . Robert Baratheon is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin , and its television adaptation Game of Thrones .