Empire of Vietnam
The Office of the Prime Minister of the Socialist Republic traces its lineage back to Hồ Chí Minh, the first Prime Minister of the Democratic Republic. The office has no official connection, or lineage, to the heads of government of the former South Vietnam (with the exception of Huỳnh Tấn Phát, a communist and the last head of government of South Vietnam). Officially there have been 8 prime ministers of Vietnam, but there have been 29 prime ministers of Vietnam if the prime ministers of the Empire of Vietnam and South Vietnam are counted.