He was born in Don Talad in 1911, the eldest son of H.H. Prince Ratsadanay, Prince of Champassak and Princess Sutsamone. He was educated at Wat Liep Monastery Sch. and l'École de Droit, Vientiane. He met Mom Bouaphanh Soumpholpakdy of Kengkok and married in 1943. The couple had six sons and three daughters: Prince Keo Champhonesak na Champassak, Prince Saysanasak na Champassak, Prince Keo Halusak na Champassak, Prince Simoungkhounsak na Champassak, Prince Vannahsak na Champassak, Prince Vongdasak na Champassak, Princess Ninhdasak na Champassak, Princess Keosondarasak na Champassak and Princess Keomanisak na Champassak. He has 11 grandchildren. He succeeded on the death of his father as Head of the Princely House of Champassak, June 1946. in the same time, he renounced his rights in order t