SE Asia: The Khmer ruler Suryavarman II annexes the Champa kingdom, which refused to help in the invasion of Annam; soon the Chams rebel and regain their independence. Western Europe: Unification of Leòn and Gallastria under John II Ramiro of the Gallastrian Mabinardo dynasty. Central-Eastern Europe: King Wladislaw II of Poland is exiled by his brothers and replace by Boleslaw IV the Curly. Byzantine Empire: The Byzantines, helped by Venice, expel the Normans and Pisans from the Ionian islands and the Aegean Sea; Venice recovers Corfu.