Thong Lan

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Thong Lan
King of Ayutthaya
King of Ayutthaya
Reign Seven days in 750 LE
(1388/89 CE)
Predecessor Borommarachathirat I
Successor Ramesuan
Born ca 735 LE (1373/74 CE)
Died 750 LE (1388/89 CE)
Wat Khok Phraya (in present-day Phra Nakhon Si Ayutthaya Province, Thailand)
Dynasty Suphannaphum
Father Borommarachathirat I

Thong Lan (Thai: ทองลัน) was the fourth king of Ayutthaya, an ancient kingdom in Thailand. He was a son of Borommarachathirat I.[1] In 750 LE (1931 BE; 1388/89 CE), he succeeded his father to the throne of Ayutthaya at the age of fifteen.[1] Having reigned for only seven days, he was put to death by his relative, Ramesuan, who then assumed the throne.[2]


According to the Luang Prasoet Chronicle, his name is Thong Lan (ทองลัน; IPA: [tʰɔ̃ːŋ˧.lä̃n˧]).[3] Thong (ทอง) means "gold". Lan (ลัน) is an archaic word whose meaning is not known.[4] There is a suggestion that the name Thong Lan is from Thong Lan (ท้องลั่น; IPA: [tʰɔ̃ːŋ˦˥.lä̃n˥˩]), which literally means "cry of stomach".[5]

The Royal Autograph Chronicle and its variant versions say his name is Thong Chan (ทองจันทร์; IPA: [tʰɔ̃ːŋ˧.t͡ɕä̃n˧]),[2] which literally means "gold from the moon". The Van Vliet Chronicle, written in 1640 CE by Dutch merchant Jeremias Van Vliet, also states his name as Thong Chan (written Thong t'Jan in the chronicle).[6]



Thai and foreign chronicles say Thong Lan was a son of Borommarachathirat I.[1] Thai chronicles state that he was fifteen years of age when he ascended the throne in 750 LE (1931 BE; 1388/89 CE).[1] Based on this information, Thong Lan was possibly born in 735 LE (1916 BE; 1373/74 CE). However, the Van Vliet Chronicle says he was seventeen when ascending the throne.[6]

Accession to the throne[edit]

Ramathibodi I, the first king of Ayutthaya, had a son, Ramesuan, whom he appointed the ruler of Lop Buri.[7] He also appointed his relative, Borommarachathirat I, as the ruler of Suphan Buri.[8] In 731 LE (1912 BE; 1369/70 CE), Ramathibodi I died. Ramesuan came from Lop Buri and ascended the throne of Ayutthaya.[9] The next year, Borommarachathirat I marched his army from Suphan Buri and seized the throne of Ayutthaya. He sent Ramesuan back to Lop Buri.[8]

In 750 LE (1931 BE; 1388/89 CE), Borommarachathirat I led his army to attack Chakangrao. But he fell ill and died en route.[10] His son, Thong Lan, then succeeded to the throne.[1] The Van Vliet Chronicle describes Thong Lan as "not much intelligent".[6]


After Thong Lan had been on the throne for seven days, Ramesuan came from Lop Buri with his army and seized the throne of Ayutthaya. Ramesuan had Thong Lan executed at Wat Khok Phraya, a Buddhist temple near the palace.[2]



  • Phraratchaphongsawadan Chabap Phraratchahatthalekha Lem Nueng พระราชพงศาวดาร ฉบับพระราชหัตถเลขา เล่ม 1 [Royal Autograph Chronicle of Siam Volume 1] (in Thai) (8th ed.). Bangkok: Fine Arts Department of Thailand. 1991. ISBN 9744171448. 
  • Prachum Phongsawadan Chabap Kanchanaphisek Lem Nueng ประชุมพงศาวดาร ฉบับกาญจนาภิเษก เล่ม 1 [Golden Jubilee Collection of Historical Archives, Volume 1]. Bangkok: Fine Arts Department of Thailand. 1999. ISBN 9744192151. 
  • Princess Maha Chakri Sirindhorn Foundation (2011). Namanukrom Phramahakasat Thai นามานุกรมพระมหากษัตริย์ไทย [Directory of Thai Kings] (in Thai). Bangkok: Princess Maha Chakri Sirindhorn Foundation. ISBN 9786167308258. 
  • Van Vliet, Jeremias (2003). Wyatt, David K., ed. Phongsawadan Krung Si Ayutthaya Chabap Wan Walit Phutthasakkarat Song Phan Nueng Roi Paet Sip Song พงศาวดารกรุงศรีอยุธยา ฉบับวันวลิต พ.ศ. 2182 [1640 Van Vliet Chronicle of Ayutthaya] (in Thai) (2nd ed.). Bangkok: Matichon. ISBN 9743229221. 
Thong Lan
Born: ca 735 LE (1373/74 CE) Died: 750 LE (1388/89 CE)
Regnal titles
Preceded by
Borommarachathirat I
King of Ayutthaya
Seven days in
750 LE (1388/89 CE)
Succeeded by