Thai Sa

History King of Banyongrattanat Palace was born Prince Phet to King Sanphet VIII and his principal queen. After the death of his father in 1709 Prince Phet was crowned as King of Siam and took the reigning name Phumintharacha . He appointed his brother Prince Phon as the Prince Viceroy in First Class. The king was said to be so fond of silver barb that he forbade anyone but himself from fishing them or else they would be fined, and he liked to fish often in the pool beside Banyongrattanat Palace, where he came to live regularly. This earned him the epithet "Angler King" . His reign was marked by the building of many canals, and "large sea-going vessels". Relations with Qing China also prospered during his reign, with Ayutthaya regularly dispatching tribute missions and exporting rice to southern China during periods of food shortage. Trade with Chinese merchants expanded significantly, contributing to the growing Chinese community in Ayutthaya. Siam also exported many live elephants.

Invasion of Cambodia

In the early reign of King Thai Sa, there was a royal succession conflict in Cambodia. Prince Ang Tong and his younger brother, Prince Kaev Hua III, were fighting for the throne of Cambodia. In 1715, Nguyễn Phúc Chu the Nguyen lord (Vietnam) who supported King Kaev Hua III invaded Oudong and King Thommo Reachea III and Prince Ang Tong along with their families fled to Ayutthaya for protection. King Tai Sa ordered Chao Phraya Chakri to invade Cambodia to restore King Thommarcha in 1717. The Siamese fleets suffered defeat by the Vietnamese at Banteay Mas yet on the land the Siamese were able to reach Oudong in 1718 and eliminated Vietnamese troops in the city. King Keao Fa, however, took negotiating measures. He agreed to pay tribute to the Siamese court as Ayutthaya's vassal state in exchange for the Siamese's acknowledgment of him as the legitimate king of Cambodia.

Succession crisis King Thai Sa had three sons – Prince Narenthon, Prince Aphai and Prince Poramet. In 1732, while King Thai Sa was on his deathbed he gave the throne to Prince Aphai since Prince Narenthon, his elder brother had entered the priesthood. Prince Phon, the younger son of Sanphet VIII managed to defeat his nephews and took the throne as King Borommakot.

King Thai Sa had a personality similar to that of King Suriyenthrathibodi. The chronicle describes him as follows:

Issue Consort and Concubines Children 1. Thongsuk, Princess Rachanurak Princess ThepPrincess PrathumNarenthon, Prince Surenthra PhithakPrince AphaiPrince PorametPrince Thap 2. Others Prince SetthaPrince PrikPrincess Sombunkhong

Ancestry