Sisowath (7 September 1840 – 9 August 1927) was King of Cambodia from 27 April 1904 to his death in 1927. He was the son of King Ang Duong and half brother of Prince Si Votha and King Norodom. He is the progenitor of the House of Sisowath. Sisowath was given the birth name of "Ang Sar". When he was born, Cambodia was under joint Siamese and Vietnamese rule. The royal family lived in Battambang then under Siamese hegemony. Like his brother King Norodom, Sisowath was educated in the Siamese capital of Bangkok. He did not return to his native Cambodia until 1860, when his father and the ruling monarch, Ang Duong, died. He hastily returned to Oudong, the royal capital of Cambodia, to prevent his half-brother, Prince Si Votha from seizing the throne. He succeeded, and his other half-brother, Norodom, became king. Although Norodom was more compliant, rebellion broke out in Cambodia, and soon the French, seeking control of Southeast Asia, forced Norodom to comply with a French protectorate over Cambodia. The French thus drove out the Thai and the Vietnamese officials, and Cambodia became a French protectorate. Sisowath was enraged, and he exiled himself to Saigon in Vietnam in 1864, the other former overlord of Cambodia, in a show of defiance. The French, who also had control of Saigon, persuaded Sisowath to remain there under French "protection", as his life was in danger by the "rebels in Cambodia". In reality, the French used Sisowath as a tool to threaten Norodom. If Norodom was not following France's policies of reform,