Mangrai

King Mangrai (Lanna:) (1238–1317), also known as Mengrai, was the 25th King of Ngoenyang (r. 1261–1292) and the 1st King of Lanna (r. 1292–1317). He established a new city, Chiang Mai, as the capital of the Lanna Kingdom (1296–1558).

Early years

King Mangrai was born on October 2, 1238 in Ngoen Yang (present day Chiang Saen) Thailand on the Mekong River, a son of the local ruler Lao Meng and his wife Ua Ming Chommueang, a princess from the Tai Lue city of Chiang Rung, which is now called Jinghong, in Sipsongpanna (Xishuangbanna), China.

In 1259, Mangrai succeeded his father to become the first independent king of the unified Tai city states in northern Lanna and what is now northern Laos. Seeing the Tai states were disunited and in danger, Mangrai quickly expanded his kingdom by conquering Muang Lai, Chiang Kham and Chiang Khong and initiating alliances with other states.

In 1262, he founded the city of Chiang Rai as his new capital in the Kok River basin. He also seems to have been operating around this time in the area of Fang in the Upper Kok Valley.