Choa Keawnavarat was the 36th and also the last King of Lanna and Prince Ruler of Chiang Mai. Although reigning from 1910 to 1939, he never had any true administrative power, and with him ended the reign of the Seven Princes Dynasty.
Naovarat was born as the 6th son of Phra Choa Intavichyanon, 7th ruling prince of Chiang Mai and Mae Choa Kew. In 1877, when he was 15 years old and his father still ruled Chiang Mai, Naovarat was appointed as Vice Minister of treasury.
At the age of 22, he married Mae Choa Jammary, daughter of Choa Rajapakinai Panfar. After that he married Choaying Fai, Mom Buakew, and Mom Sae, with all of whom he had 4 sons and 2 daughters.