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King of Ayutthaya
Portrait of King Athittayawong.jpg
King of Siam
Reign36 days in 1629
SuccessorPrasat Thong
Wat Khok Phraya, Ayutthaya, Ayutthaya Kingdom
Full name
HouseSukhothai Dynasty

Athittayawong[1] (Thai: อาทิตยวงศ์; born 1618) King Athitayawong was the shortest-reigning monarch of Ayutthaya, only for 36 days in 1629 and the last king of the Sukhothai dynasty."[2]:55

Prince Athitayawong was the son of King Songtham and his principal wife. His elder brother, King Chetthathirat and his mother were executed in 1629 after Okya Siworawong (Thai: ออกญาศรีวรวงศ์) or Phraya Siworawong staged a coup.

The Puppet King[edit]

The ten years old child prince was raised to the Ayutthaya throne with Siworawong. However, Siworawong continued to administer the country as Chaophraya Kalahom. After about a month, the government servants complained that there were in fact two chiefs in the country, Athittayawong and Siworawong administering as a king, which could cause future danger for the country. They persuaded Siworawong to ascend to the throne so there would be only one king as per custom. Athittayawong was dethroned and Siworawong assumed the title Somdet Phrachao Prasat Thong.[3]:215–216


Athitayawong was executed at Wat Kok Phraya (Thai: วัดโคกพระยา) soon, ending the Sukhothai dynasty. Siworawong ascended the throne as the first king of the Prasat Thong dynasty.


  1. ^ The Royal Institute. List of monarchs Ayutthaya Archived 2013-12-03 at the Wayback Machine. (in Thai)
  2. ^ Chakrabongse, C., 1960, Lords of Life, London: Alvin Redman Limited
  3. ^ Rajanubhab, D., 2001, Our Wars With the Burmese, Bangkok: White Lotus Co. Ltd., ISBN 9747534584

See also[edit]

Born: 1618 Died: ?
Regnal titles
Preceded by
King of Ayutthaya
36 days in 1629
Succeeded by
Prasat Thong