The Red Keep is the primary castle located within the city of King's Landing, the capital of the Seven Kingdoms in the fictional world of A Song of Ice and Fire. It serves as the royal residence and the seat of power for the ruling monarch. The castle is known for its distinctive red stone walls and towers, which give it its name. Inside the Red Keep, important locations include the Iron Throne, where the king sits to rule, and the Small Council chamber, where advisors meet to discuss matters of state. The castle also houses the Black Cells, a notorious dungeon for prisoners.