Jayavarman VIII (Khmer: ជ័យវរ្ម័នទី៨), posthumous name Paramesvarapada, was one of the prominent kings of the Khmer empire. His rule lasted from 1243 till 1295, when he abdicated. One of his wives was Queen Chakravartirajadevi. He reverted back to Hinduism from his father's religion of Buddhism and patronized Hinduism throughout his regime.
It was during the reign of Jayavarman VIII that the Mongol forces under the command of Kublai Khan attacked the Angkor empire in 1283. In 1281, Jayavarman VIII had imprisoned emissaries of the Mongol generalissimo in Champa. In 1283, he decided to pay tribute and buy peace and thus his rule survived. Chinese annals record that in 1291, "the king of Lohu" [Cambodia] sent a mission who presented “the usual tribute of gold, elephant ivory and other things”. In 1290, the Mon people regained their independence.
Jayavarman VIII suffered a devastating war against the Sukhothai Kingdom.
Jayavarman VIII was a Shivaite who destroyed or changed every Buddhist image in the kingdom. He endowed a Hindu shrine Mangalartha in 1295, just before he was overthrown by his son-in-law Indravarman III (Srindravarman), a Buddhist. House of Sisowath are the descendants of Jayavarman VIII.