Sisowath Youtevong was born in 1913 in Udong, Cambodia, as the son of Prince Chamraengvongs (1870–1916) and Princess Sisowath Yubhiphan (1877–1967). He studied at a science university in
France and received a certificate of mathematics in 1941. He was also a member of the
French Section of the Workers' International, the predecessor to the present-day
Socialist Party. He would later go on to be elected as President of the newly founded
Democratic Party of Cambodia in April 1946. Youtevong was the principal author of the constitution at that time, which was put to use on 6 May 1947. He led the Democratic Party to victory in the elections on 1 September 1946 and was sworn in as Prime Minister on 15 December 1946. Prince Sisowath Youtevong died on 17 July 1947, at
Calmette Hospital, Phnom Penh, and was succeeded by
Sisowath Watchayavong. == Personal life ==