Ratsadathirat

Ratsadathirat รัษฎาธิราช
King of Ayutthaya
King of Siam
Reign	Five months from 895 LE (1533/34 CE) to 896 LE (1534/35 CE)
Predecessor	Borommarachathirat IV
Successor	Chairachathirat
Born	890 LE (1528/29 CE)
Died	896 LE (1534/35 CE)
House	Suphannaphum Dynasty
Father	Borommarachathirat IV

Ratsadathirat (Thai: รัษฎาธิราช) was the twelfth king of Ayutthaya, an ancient kingdom in Thailand. He was a son of Borommarachathirat IV and succeeded his father to the throne of Ayutthaya at the age of five in 895 LE (2076 BE, 1533/34 CE). The following year, after having been on the throne for five months, he was put to death by his relative,Chairachathirat, who then assumed the kingship.

According to the Royal Autograph Chronicle and its variant versions, his name is Ratthathirat (รัฏฐาธิราช; Thai pronunciation: [rät̚˥.tʰäː˩˥.tʰi˥.räːt̚˥˩]; literally "overlord of the realm") or Ratthathiratchakuman (รัฏฐาธิราชกุมาร; Thai pronunciation: [rät̚˥.tʰäː˩˥.tʰi˥.räːt̚˥˩.t͡ɕʰä˥.ku˩.mä̃ːn˧]; literally "child overlord of the realm").

But he is better known by the name Ratsadathirat (รัษฎาธิราช; Thai pronunciation: [rät̚˥.sä˩.däː˧.tʰi˥.räːt̚˥˩]), which is a Sanskrit variant of the Pali name Ratthathirat.

In the Van Vliet Chronicle, written in 1640 CE by Dutch Merchant Jeremias Van Vliet, his name is written as Woo-Rhae Rassa Thae Thieraya.

All Thai and foreign chronicles say that Ratsadathirat was a son of Borommarachathirat IV, the eleventh king of the Kingdom of Ayutthaya, and that Ratsadathirat was five years of age when ascending the throne in 895 LE (2076 BE, 1533/34 CE). Ratsadathirat was possibly born in 890 LE (2071 BE, 1528/29 CE). Modern scholars have suggested that his mother was a daughter of a powerful noble who wanted to be related with the royal household through marriage, because the enthronement of Ratsadathirat appears to have been supported by a group of nobles, despite his minority.

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