800s

decade

8th-century illuminated manuscript Gospel book, held in Trinity College, Dublin

Hariharalaya (, Hariharalaya) was an ancient city and capital of the Khmer empire located near Siem Reap, Cambodia in an area now called Roluos (Khmer: រលួស). Today, all that remains of the city are the ruins of several royal temples: Preah Ko, the Bakong, Lolei.