Krom Luang Thepharirak
Somdet Phra Samphanthawong Thoe Chaofa Krom Luang Thep-harirak, birth name Tan, was a prince of Siam. He was a nephew of King Rama I. He was known in Vietnamese contexts as Chiêu Tăng.
Prince Thepharirak was the eldest son of Princess Sri Sudarak and her Chinese husband Ngoen Saetan. 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 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, the governor of Cambodia, also sent 5000 Cambodian soldiers to support them. 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.
Krom Luang Thepharirak was authorized to attack Chiang Saen together with Phraya Yomarat in 1804.
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.
