Key Facts
- Duration
- 1292–1775 (independent); dissolved 1909
- Capital
- Chiang Saen, later Chiang Mai
- Became Burmese vassal
- 1558, under Toungoo dynasty
- Joined Siam
- 1775–1776, under King Taksin
- Formally absorbed by Siam
- 1899–1909 via thesaphiban system
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
Lan Na emerged as a continuation of the earlier kingdom of Ngoenyang, consolidating power in present-day northern Thailand from 1292 onward. Founded under King Mangrai, it expanded through the fertile valleys of the north, establishing Chiang Mai as a major center. By the 15th century the kingdom had grown strong enough to field armies capable of challenging the powerful Ayutthaya Kingdom to the south, with whom it fought repeated wars.
Phase II: Zenith
At its height in the 15th century, Lan Na encompassed much of present-day northern Thailand and fostered a vibrant Theravada Buddhist culture with its own distinct script, art, and architectural tradition. The kingdom maintained active trade connections across mainland Southeast Asia and supported the production of religious manuscripts and temple construction, making Chiang Mai a significant religious and cultural center of the region.
Phase III: Decline
Lan Na was weakened by prolonged conflict with Ayutthaya and fell to the Burmese Toungoo dynasty as a vassal state in 1558. Burmese control alternated with periods of autonomy before the Konbaung dynasty reasserted dominance. In 1775 Lan Na chiefs defected to Siam, ending Burmese rule. Siam absorbed the kingdom fully by 1776 under King Taksin, and the Siamese state dismantled its remaining autonomy through administrative reforms finalized by 1909.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory