Founded around the time of the collapse of the Tang dynasty, at its greatest extent the Liao Dynasty (916-1125) ruled over northeastern China, the Mongolian Plateau, and the northern part of the Korean Peninsula. The Liao rulers were Khitan, an historically nomadic ethnic group from Northeast Asia. The Liao dynasty came to an end with the capture of Emperor Tianzuo in 1125. It was replaced with the Jin Dynasty, led by the Jurchen ethnic group. However, Liao loyalists established the Western Liao dynasty (1124-1218)  which ruled over parts of Central Asia for almost a century before being conquered by the Mongol Empire.

The influence of the Liao dynasty on art history includes a substantial legacy of sculpture, with surviving examples in painted wood, metal, and three-color glazed sancai ceramics.

Web resource here.

Arhat (Luohan). Glazed stoneware. Liao Dynasty. Ca. 1000 CE. Metropolitan Museum of Art, New York.