Borommarachathirat I
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Borommarachathirat I พระบรมราชาธิราชที่ ๑ | |||||
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King of Ayutthaya | |||||
Portrait of King Borommarachathirat I of Ayutthaya on display at Suphan Buri National Museum (พิพิธภัณฑสถานแห่งชาติ สุพรรณบุรี) | |||||
King of Siam | |||||
Reign | 1370–1388 | ||||
Predecessor | Ramesuan | ||||
Successor | Thong Lan | ||||
Born | 1310 | ||||
Died | 1388 | ||||
Issue | Thong Lan | ||||
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House | Suphannaphum Dynasty |
King Borommarachathirat I or King Borom Rachathirat I (Thai: สมเด็จพระบรมราชาธิราชที่ ๑), also known as Khunluang Pha Ngua (Thai: ขุนหลวงพะงั่ว); 1370–1388), was the third king of Ayutthaya Kingdom.[1]: 29 He was the older brother of King U-thong's consort, and was King Ramesuan's uncle.
As the lord of Suphanburi, a powerful rival of Ayutthaya, he forced King Ramesuan from power and took the throne of Ayutthaya. Known as a great warrior, his reign marked the expansion of Ayutthaya to the north. He suppressed a rebellion in Sukhothai Kingdom (1371–78) and subjugated major northern powers such as Phitsanuloke. Invading Chiengmai, his forces were defeated and repulsed at the Battle of Sen Sanuk, near Chiengmai.[2]
After his death in 1388, his son, Thong Lan reigned for only a week. Ramesuan, who had previously retreated to Lavo, returned and toppled him. Ramesuan eventually assumed the throne, as the king for the second time.