After the Fall of Ayutthaya in 1767, Phra Palat Nu the vice-governor of Ligor established himself as the local warlord and ruler over Southern Thailand. King Taksin of Thonburi marched south to subjugate Phra Palat Nu or "Chao Phraya" Nakhon Nu in 1769. "Chao Phraya" Nakhon Nu was taken to Thonburi but King Taksin re-installed Nakhon Nu as a tributary ruler of Ligor in 1776. King Rama I re-established the governorship of Ligor in 1784 and it ceded to be a tributary kingdom. During the Burmese-Siamese War in 1786, the city of Ligor was sacked by the invading Burmese. During the tenure of "Chao Phraya" Nakhon Noi (1811-1838), known in British sources as the "Raja of Ligor", Ligor retained a relative autonomy and emerged as the political and cultural center of Southern Siam. Bishop Pallegoix mentioned that the city of Ligor had the population of 150,000 people, perhaps the largest city in southern Siam before being surpassed by Surat Thani and Hatyai in modern times.