King Photisarath (1520–1550) was one of the great kings of Lan Xang, he took Nang Yot Kham Tip from Lanna as his queen as well as lesser queens from Ayutthaya, and Longvek. Photisarath was a devout Buddhist, and declared it as the state religion Lan Xang. In 1523 he requested a copy of the Tripiṭaka from King Kaeo in Lanna, and in 1527 he abolished spirit worship throughout the kingdom. In 1532 the period of peace ended for Lan Xang when Muang Phuan rebelled and took Photisarath two years to fully suppress.