Phetsarath Ratanavongsa
| Phetsarath Ratanavongsa | |
|---|---|
| Head of State of Laos | |
| In office 12 October 1945 – 24 April 1946 | |
| Preceded by | Sisavang Vong | 
| Succeeded by | Sisavang Vong | 
| Prime Minister of Luang Phrabang | |
| In office 21 August 1941 – 10 October 1945 | |
| Monarch | Sisavang Vong | 
| Preceded by | Office created | 
| Succeeded by | Phaya Khammao | 
| Personal details | |
| Born | 19 January 1890 Luang Prabang, Kingdom of Luang Phrabang, Siam | 
| Died | 14 October 1959 (aged 69) Luang Prabang Laos | 
| Political party | Lao Issara (1945-1949) | 
| Spouse(s) | Nhin Kham Venne Apinnaphon Yongchaiyudh | 
| Parents | 
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Prince Phetsarath Ratanavongsa (Somdej Chao Maha Uparaja Petsaraj Ratanavongsa (Lao: ສົມເດັຈເຈົ້າ ມຫາ ອຸປຣາຊ ເພັຊຣາຊ ຣັຕນວົງສາ) (19 January 1890 – 14 October 1959) was the 1st Prime Minister of Luang Phrabang in French Laos from 21 August 1941 to 10 October 1945, and Head of State of Laos between 12 October 1945 and 24 April 1946.