During his childhood, Cambodia was ruled by Thommo Reachea III (1736–1747) who held his position with the support of the Siamese.
For 24 of the next 26 years, Cambodia was ruled by two monarchs, Chey Chettha V (1749–1755) and Outey II (1758–1775) who allied with the Vietnamese.
[citation needed] In 1775, Outey abdicated and Ang Non was elected king under the name Reamea Thipadei III.
[2] During his reign, Ang Non served as a puppet for the Siamese and led Cambodia in fighting against the Vietnamese during the tumultuous years in Vietnam after the Tay Son Rebellion.
Ang Non remained on the Cambodian throne until 1779, when he was captured and drowned by Vietnamese agents at the pond of Khayong, near Phanom Kamraeng.