and was originally a Cham lord under king Po Tisuntiraydapaghoh, who followed Vietnamese forces in southern Vietnam (whether Tây Sơn or Nguyễn is not specified).
The fate of the small polity was entirely dependent on the outcome of the strife between the Tây Sơn dynasty and the Nguyễn lords.
Historical tradition explains that the old king left a son in Cambodia, Po Krei Brei, who managed to prove his father's innocence.
[9] However, the chronology of events is not clear: Vietnamese chronicles say that the Tây Sơn rebels invaded Bình Thuận in 1782 and were approached by Po Tisuntiraidapuran who submitted to them.
At the beginning, his rule was popular since forced deliveries of elephant tusks, rhinoceros horn, and wood were abolished.
Po Tisuntiraidapuran was defeated and forced to flee with the Tây Sơn general Hô Van Thự.
He was executed in Đồng Nai (adjacent to Gia Định, present-day Ho Chi Minh City) "for his crimes".