The royal castle, called the Red Keep, sits on Aegon's Hill. It is the seat of the royal court. The Keep holds the Iron Throne. Aegon commissioned the throne's construction from the swords of his defeated enemies. According to legend, he kept the blades sharp because he believed that no ruler should ever sit comfortably. Centuries later, kings still cut themselves on the throne. It is a common belief that one who cuts himself on the throne has been "rejected" by the throne and is therefore not fit to rule.