Yot Fa

Yotfa ยอดฟ้า
King of Ayutthaya kingdom
King of Siam
Reign	1546–1548
Predecessor	Chairachathirat
Successor	Worawongsathirat
Born	1536
Died	10 June 1548 Khok Phraya Temple (now in Phra Nakhon Si Ayutthaya District, Phra Nakhon Si Ayutthaya Province)
House	Suphannaphum Dynasty
Father	Chairachathirat
Mother	Si Suda Chan

Yotfa (Thai: ยอดฟ้า) or Kaeofa (Thai: แก้วฟ้า) was the 14th Ayutthayan king from the Suphannaphum Dynasty (c. 1536 – 10 June 1548)

Yotfa was a son of King Chairachathirat (พระไชยราชาธิราช) and his consort Lady Si Suda Chan (ท้าวศรีสุดาจันทร์). He reigned from 1546 until his death by murder.

Yotfa was born around 1536. He was a son of King Chairachathirat and Lady Si Suda Chan, the Consort of the Left. He had one brother, Prince Sisin (พระศรีศิลป์), who was six years younger than him.

After King Chairachathirat's death in 1546, Prince Yotfa succeeded to the throne at the age of eleven. His mother, Lady Si Suda Chan, then served as the regent. To avoid political conflicts with Lady Si Suda Chan, Prince Thianracha (พระเฑียรราชา), the most senior member of the royal household, became a monk and stayed at Ratchapraditsathan Temple (วัดราชประดิษฐาน) throughout the reign of Yotfa.

Jeremias van Vliet recorded that Yotfa was fond of riding a horse along the fields, watching elephant duels, learning the use of weapons and studying political science, and that his reign saw abundance of agricultural products. However, many Thai chronicles recorded that bad omens occurred shortly after he ascended the throne. When Yotfa presided over an elephant duel, the tusk of Lord of Fire (พระยาไฟ Phraya Fai), a royal elephant, broke into three pieces. At night, another royal elephant, Lord of Six Tusks (พระฉัททันต์ Phra Chatthan, named after a legendary six-tusked elephant), cried like a human being and strange sounds emerged from the Gate of Phaichayon (ประตูไพชยนต์ Pratu Phaichayon), the gate to the Throne Hall of Phaichayon (ไพชยนต์มหาปราสาท Phaichayon Maha Prasat).

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