[1][page needed] The origin of this prince is uncertain: According Achilles Dauphin-Meunier, he was the rightful successor and brother of Udayadityavarman I, who lives climbing the pretensions of a usurper, Suryavarman I, but managed to stay in Yaçodhapura.
George Coedès, who considers him a usurper, believes that Jayaviravarman was the prince of the city of Tambralinga (Nakhon Si Thammarat in Thailand), and that he takes power and reigns in Angkor.
The most recent studies found that Jayavirahvarman only controlled the western part of the kingdom.
Suryavarman I later span influence westward to Kampong Thom and finally took over the Akorian throne.
This led to Suryavarman I's attacking campaign of the Khorat Plateau and Chao Phraya basin, which included Lavapura of the Lavo Kingdom which was the vassal of Tambralinga.