Si Satchanalai

Chaliang or Sawankhalok, later known as Si Satchanalai, was a political entity in the upper Chao Phraya Valley in central Thailand. It was founded in the early 600s by uniting four regional chiefdoms, with Haritvanlee or Chaliang (นครหริตวัลลีย์) as the center, and became part of the Dvaravati's Lavo. In 1001, Chaliang was referred to as an independent kingdom Chéng Liáng in the Chinese text Song Shi. The term San-lo (三濼) mentioned in Lingwai Daida in 1178 plausibly referred to Chaliang's new center, Sawankhalok.

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