Ang Eng[a] (Khmer: អង្គអេង [ʔɑŋ ʔeːŋ]; 1773 – 5 May 1796) was King of Cambodia from 1779 to his death in 1796.
In 1782, the Tây Sơn dynasty of Vietnam attacked Gia Định and defeated the Nguyễn lord.
Cham rebels attacked Phnom Penh,[1] and Ang Eng had to flee to Siam.
During the king's absence, Baen was promoted to Chaophraya Aphaiphubet, and was appointed the regent of Cambodia and thereby worked for Siam.
Battambang and Siem Reap were separated from Cambodia and ceded to Siam and Baen was appointed the governor of these provinces.