The Sibling Kings hold all temporal power in Aerenal. By ancient tradition, the nation must be ruled by a bonded brother and sister. When either sibling dies, the Undying Court selects a new pair to rule. The Sibling Kings are seen as the living embodiment of Aerenal, and the conduit for the power of the Undying Court. The current siblings are Belaereth and Tezaera of the line of Mendyrian.