https://en.wikipedia.org/wiki/Khmer_Empire
WebAccording to Sdok Kok Thom inscription,: 97 : 353–354 circa 781 Indrapura was the first capital of Jayavarman II, located in Banteay Prey Nokor, near today's Kampong Cham. After he eventually returned to his home, the former kingdom of Chenla, he quickly built up his influence, conquered a series of competing kings, and in 790 became king of a kingdom …