Jayavarman, VII

Jayavarman VII (Khmer: ជ័យវរ្ម័នទី៧, 1125–1218) was a king (reigned c.1181-1218) of the Khmer Empire in present day Siem Reap, Cambodia. He was the son of King Dharanindravarman II (r. 1150-1160) and Queen Sri Jayarajacudamani. He married Jayarajadevi and then, after her death, married her sister Indradevi. The two women are commonly thought to have been a great inspiration to him, particularly in his unusual devotion to Buddhism, as only one prior Khmer king was a Buddhist. Jayavarman VII is generally considered by historians the most powerful Khmer monarch of all time.

https://en.wikipedia.org/wiki/Jayavarman_VII

http://www.britannica.com/biography/Jayavarman-VII