Muong Thanh is the great basin of the Nam Rom, a wide rice plain under a Tai lord, with Mường Lay (Lai Châu) down the Da.
The Tai Dam chronicle makes the Tai come here from Mường Lò under a half-legendary Lang Chuong. The chronicle has no firm dates, so we do not say whether the Tai hold the basin on 1 January 1200.
Who he is
- Title
- Tai chao muong
- Confidence
- low
The Tai Dam chronicle (Quam To Muong), as reported second hand; Vietnamese notices
What it holds
- The Nam Rom rice plain and its weirs
- The roads to Muang Phuan and the Mekong and to Dali's frontier
- Tribute from the hill peoples above
Threats
- Feud with neighbouring muong
Places of note
- Muong Thanh: Seat
Where the sources disagree
Evidence: Later chronicle; no dated record.
Primary sources for Tai and Muong of the north-west
Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.
- The Complete Annals of Dai Viet, Ngo Si Lien, drawing on Le Van Huu's Dai Viet su ky (1272) and Phan Phu Tien; continued by Pham Cong Tru and Le Hi (1479; printed 1697 in the standard Chinh Hoa edition). The main narrative source for Dai Viet in 1200, compiled in 1479 from Le Van Huu's lost history of 1272. Read online
- The Unofficial History of Nanzhao, Yang Shen; revised by Hu Wei (16th century, revised 1775, from Dali and Yunnan traditions and lost local histories). The kingdom of Dali has no surviving text of 1200: its own records were destroyed in the Mongol conquest and after, and the Song shi's Dali entry ends in 1175. Read online
Sources and studies
- OMNIA board notes for the Vietnam and Champa area (a lead, not a source)
- Ngo Si Lien, Dai Viet su ky toan thu (1479), the annal of the Ly: NOT opened in this run (vi.wikisource and zh.wikisource were refused); every annal fact here comes second hand
Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.