After the execution of Oknha Son Kuy in the province of Preah Trapeang, Tesa Saum, (Lam Saum) a provincial administrator, formed a force in Chab Phleung (Tap Son), Tracu District, to battle against the Vietnamese. His army won a battle in Phnor Don (0 Dung) that resulted a heavy casualty for the Vietnamese. He was later captured on another front, and brought to Hue to be executed. This happened under the reign of King Thieu-Tri, one of the Vietnamese emperors.
