[5]: 27 [6] According to a better-known source, a seventeenth-century account by Dutchman Jeremias van Vliet, a Renowned Legend stated that Ramatibodi was an ethnic Chinese, having sailed down from China.

After succeeding in trade, he became influential enough to rule the city of Phetchaburi, (or Vajrapur in sanskrit ) a coastal town of the Gulf of Thailand, before travelling up to Ayutthaya.

King Ramathabodi's reign included Korat, Chantaburi, Tavoy, Tanintharyi, Tenasserim, and large parts of Malaya.

[5]: 29  In 1388 Ramesuan took revenge by taking Ayutthaya back from Borommarachathirat I's son, Thonglan.

From then on Uthong dynasty was then purged and became a mere noble family of Ayutthaya until the 16th century.