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Somdet Phra Samphanthawong Thoe Chaofa Tan Krom Luang Thepharirak (Thai: สมเด็จพระสัมพันธวงศ์เธอ เจ้าฟ้าตัน กรมหลวงเทพหริรักษ์, 1759–1805), birth name Tan (ตัน), was a prince of Siam. He was a nephew of King Rama I. He was known in Vietnamese contexts as Chiêu Tăng (昭曾).[1]

Krom Luang Thepharirak
Prince of Siam
Born1759 (1759)
Samut Songkhram, Siam
Died1805 (aged 45–46)
Bangkok, Siam
HouseChakri Dynasty
FatherNgoen Saetan
MotherKaeo, Princess Sri Sudarak

Prince Thepharirak was the eldest son of Princess Sri Sudarak (เจ้าฟ้ากรมพระศรีสุดารักษ์) (sister of Phutthayotfa Chulalok) and her Chinese husband[2] Ngoen Saetan (เงิน แซ่ตัน). One of his sisters was Sri Suriyendra.

In 1783, Nguyễn Ánh, who was the Nguyễn lord ruled over southern Vietnam, sought aid for Siamese to retake Gia Định (Sai Gon) from Tây-Sơn rebel forces. In 1785, Prince Thepharirak was ordered to attack Sai Gon with 50,000 soldiers together with Ánh, while Phraya Wichitnarong led an army through Cambodia in order to gather khmer soldiers to join the battalion. Chaophraya Aphaiphubet (Vietnamese: Chiêu Thùy Biện 昭錘卞), the governor of Cambodia, also sent 5000 Cambodian soldiers to support them.[3] They were utterly beaten by Nguyễn Huệ in Rạch Gầm-Xoài Mút, and fled to Cambodia. King Rama I was furious. The King was about to punish him, but then the two elder sisters of the King gave a royal pardon.[4]

Krom Luang Thepharirak was authorized to attack Chiang Saen together with Phraya Yomarat in 1804.[5]

He is the founder of "Devahastin na Ayudhya" family, a cadet branch of Chakri Dynasty that descended directly from the siblings of King Rama I.


  1. ^ บทความ - คณะสังคมวิทยาและมานุษยวิทยา - มหาวิทยาลัยธรรมศาสตร์ (PDF). p. 8.
  2. ^ George William Skinner (1957). Chinese Society in Thailand: An Analytical History. Cornell University Press. p. 26.
  3. ^ Nguyễn Duy Chính, "Tương quan Xiêm-Việt cuối thế kỷ XVIII", dẫn theo Thadeus và Chadin Flood (dịch và hiệu đính), "The Dynastic Chronicles, Bangkok Era, The First Reign", Chaophraya Thiphakorawong Edition, [Vol. I]: Text. Tokyo: The Centre for East Asian Cultural Studies, 1978. page 61
  4. ^ "King Rama The First’s letter to Queen Maria I of Portugal, 1786". Retrieved 2018-07-20.
  5. ^ "ฐานข้อมูลพิพิธภัณฑ์ในประเทศไทย : Thai Museums Database". Retrieved 2018-07-20.