Phetracha was a king of the Ayutthaya Kingdom, usurping the throne from his predecessor King Narai and originally settled in Phluluang Village. His dynasty, the Ban Phlu Luang dynasty, was the last ruling house of the Ayutthaya Kingdom.

The Ayutthaya Kingdom or the Empire of Ayutthaya was a Mon and later Siamese kingdom that existed in Southeast Asia from 1351 to 1767, centered around the city of Ayutthaya, in Siam, or present-day Thailand. European travellers in the early 16th century called Ayutthaya one of the three great powers of Asia. The Ayutthaya Kingdom is considered to be the precursor of modern Thailand, and its developments are an important part of the history of Thailand.