In antiquity, Teyrns arose from among the Banns, having grown powerful enough to move lesser Banns to swear fealty to them. There used to be many more teyrnirs before the rise of Calenhad, but he downsized them during his war for the throne. In modern Ferelden there are only two teyrnirs; Gwaren in the south and Highever in the north. Teyrns are still owed fealty by vassals of both Arl and Bann ranks, whom they may call upon in the event of war or disaster. However they are also responsible for lending aid to them when needed. In modern times a king or a queen has the right to name a teyrn.