Si Saowaphak

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Si Saowaphak
King of Ayutthaya kingdom
King of Siam
Reign 1620
Predecessor Somdet Phra Ekatotsarot
Successor Somdet Phra Chao Songtham
Died 1620
Wat Kok Phraya, Phra Nakhon Si Ayutthaya District, Ayutthaya
Full name
Somdet Phra Si Saowaphak
Somdet Phra Sanphet IV
House Sukhothai Dynasty
Father Ekatotsarot
Mother Wisutkasat

Sanphet IV (Thai: สรรเพชญที่ ๔, Khmer: សព៌េជ្ញទី៤) or Si Saowaphak (Thai: ศรีเสาวภาคย์, Khmer: សោវភាគ្យ) (1610–1611) was a short-reigning king of Ayutthaya of the Sukhothai dynasty in 1620. Prince Si Saowaphak was the son of Ekatotsarot and had an elder brother Prince Suthat who was made the Uparaja in 1607 but died before his father. Prince Si Saowaphak, as his father's second son, was expected to be invested the title of Crown Prince. However, Ekathotsarot never appointed him Maha Uparat.[1]:203

When Ekathotsarot died in 1620, Prince Si Saowaphak succeeded his father on the throne. Si Saowaphak was said to be without ability. In the same year the Japanese traders entered the palace, and held Si Saowaphak hostage until he vowed not to hurt any Japanese people. The Japanese then took the Sankharat (Supreme Patriarch) hostage to the mouth of Chao Phraya where they left for Japan.[1]:205

Not long afterwards Si Saowaphak was murdered. The throne was given to Phra Ekathotsarot's son from a first class concubine, Phra Intharacha, who had been in the priesthood for 8 years. He assumed the title Phrachao Songtham.[1]:205–206


  1. ^ a b c Rajanubhab, D., 2001, Our Wars With the Burmese, Bangkok: White Lotus Co. Ltd., ISBN 9747534584
Si Saowaphak
Born:  ? Died: 1620
Regnal titles
Preceded by
King of Ayutthaya
Succeeded by