Tribhuvanadityavarman

Tribhuvanadityavarman was a usurper who came to power after he overthrew Yashovarman II and proclaimed himself king of Angkor.

He ruled over many rebellions by Yashovarman II's loyal supporters but managed to hold the throne until, in 1177, the neighbouring Champa empire invaded.  Taking Angkor by surprise, the Cham fleet sailed up the Mekong and the Tonle Sap, guided by a Chinese sailer, then sacked Yashodharapura and killed Tribhuvanadityavarman.

The Chams were subsequently defeated by Jayavarman VII in a bloody land battle which took place on the site of the future Preah Khan Temple and, as can be seen in the Bayon Temple and Banteay Chhmar Temple bas-reliefs, in a naval battle on Tonle Sap.