Chetthathirat

Chetthathirat เชษฐาธิราช
King of Ayutthaya
King of Siam
Reign	12 December 1628[1] – 1629
Predecessor	Songtham
Successor	Athittayawong
Born	c. 1613
Died	1629 (aged 16) Wat Khok Phraya, Ayutthaya, Ayutthaya Kingdom
Names Chetthathirat Borommaracha II
House	Sukhothai Dynasty
Father	Songtham
Mother	Ammarit

Chetthathirat (Thai: เชษฐาธิราช, Jeṣaṭhādhirāja) or Borommaracha II (บรมราชาที่ ๒; c. 1613 – 1629) was the eldest son of King Song Tham and older brother of Athittayawong and Phra Sisin or Phra Phanpi Sisin (Thai: พระพันปีศรีศิลป์), all three of the House of Sukhothai. In childhood he was known as Chetthakuman (พระเชษฐากุมาร), meaning 'Chettha the Infant', or simply Chettha.