He was born in Luang Prabang, Laos.
His father was Prince Khamman Vongkotrattana who after a career in government service became a historian.
[2] Somsanith was the minister of interior and justice in the Lao Issara government from 1945 to 1946, and followed the cabinet into exile in Thailand 1946-1949.
He was appointed as Prime Minister of Laos by the king in June 1960, and his government was overthrown later in 1960.
This article about a politician from Laos is a stub.