Palau became divided into northern and southern federations. The Northern Federation is headed by the high chief and chiefess of the ruling clan Uudes of Melekeok state, the Reklai and Ebilreklai. They are commonly referred to as the king and queen of the Northern Federation. This northern federation comprises the states of Kayangel, Ngerchelong, Ngardmau, Ngiwal, Ngaraard, Ngatpang, Ngeremlengui, Melekok, Aimeliik, Ngchesar and Airai. The Southern Federation is likewise represented by the high chief and chiefess of the ruling Idid of Koror state.