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| Palden Thondup Namgyal | |
|---|---|
| The 12th Chogyal | |
 Palden Thondup Namgyal in 1971 | |
| Chogyal of Sikkim | |
| Reign | 2 December 1963 – 10 April 1975 |
| Coronation | 4 April 1965 |
| Predecessor | Tashi Namgyal |
| Successor | Monarchy abolished |
| Born | 23 May 1923 Gangtok, Kingdom of Sikkim |
| Died | 29 January 1982 (aged 58) New York City, New York, U.S. |
| Spouse | Samyo Kushoe Sangideki (1950–1957) Hope Cooke (1963–1980) |
| Issue | Prince Tenzing Kunzang Jigme Namgyal Prince Tobgyal Wangchuk Tenzing Namgyal Princess Yangchen Dolma Namgyal Prince Palden Gyurmed Namgyal Princess Hope Leezum Namgyal Tobden A son Omo |
| House | Namgyal |
| Father | Tashi Namgyal |
| Mother | Kunzang Dechen |
| Religion | Buddhism |
| Military career | |
| Allegiance |  Kingdom of Sikkim |
| Years of service | 1963 - 1975 |
Palden Thondup Namgyal OBE (Sikkimese: དཔལ་ལྡན་དོན་དྲུཔ་རྣམ་རྒྱལ; Wylie: dpal-ldan don-grub rnam-rgyal; 23 May 1923 – 29 January 1982) was the 12th and last Chogyal (king) of the Kingdom of Sikkim.