Borommarachathirat IV

For other people named Borommarachathirat, see Borommarachathirat.

Borommarachathirat IV (Thai: บรมราชาธิราชที่ ๔; also spelt Borom Rachathirat IV), also known as Borommaracha No Phutthangkun (Thai: บรมราชาหน่อพุทธางกูร; also spelt Borom Racha No Buddhakura), born Athittayawong (Thai: อาทิตยวงศ์), was the short-reigning king of Ayutthaya from 1529 to 1533.

Borommarachathirat IV บรมราชาธิราชที่ ๔
King of Ayutthaya
Reign	July/October 1529[1] – 1533
Predecessor	Ramathibodi II
Successor	Ratsadathirat
Born	Athittayawong 1488
Died	1533
Issue	King Ratsadathirat of Ayutthaya
Names Borommarachathirat Regnal name Somdet Phra Borommarachathirat
Dynasty	Suphannaphum
Father	Ramathibodi II
Religion	Buddhism

Life and reign

Borommarachathirat was born Prince Athittayawong to Ramathibodi II in 1488. He was named uparaja (heir presumptive and viceroy) at Phitsanulok in 1515.

Following his father's death, Athittayawong succeeded the throne as Borommarachathirat IV. He appointed his brother, Prince Chairachathirat, as uparaja. Borommarachathirat died abruptly in 1533 due to a smallpox epidemic; however, counter to the tradition established by the Front Palace system, the throne passed not to the uparaja but to Borommarachathirat's five-year-old son, who would rule as Ratsadathirat.^{[2]: 72 [3]: 37}

Ancestry

Ancestors of Borommarachathirat IV
8. King Borommarachathirat II of Ayutthaya 4. King Borommatrailokkanat of Ayutthaya 2. King Ramathibodi II of Ayutthaya 1. King Borommarachathirat IV of Ayutthaya