Battle of Tonlé Sap

The Battle of Tonlé Sap (French: Bataille de Tonlé Sap) took place between Champa and the Khmer Empire in 1177.

Background
Under Suryavarman II (reigned 1113–1150), the Khmer kingdom united internally, and the largest temple of Angkor, Angkor Wat, dedicated to the god Vishnu, was built in a period of 37 years. In the east, his campaigns against Champa and Annam were unsuccessful, though he did sack Vijaya in 1145 and depose Jaya Indravarman III. The Khmers occupied Vijaya until 1149, when they were driven out by Jaya Harivarman I. Suryavarman II sent a mission to the Chola dynasty of south India and presented a precious stone to the Chola emperor Kulothunga Chola I in 1114.

Another period followed, in which kings reigned briefly and were violently overthrown by their successors. Finally in 1177, the Angkor capital was raided and looted in a naval battle on the Tonlé Sap lake by a Cham fleet under king Jaya Indravarman IV, and Tribhuvanadityavarman, ruler of Angkor, was killed.