Púxiān Wànnú () was a Jurchen warlord who established the short-lived kingdom of Eastern Xia in 13th century China . He originally served the dying Jin Dynasty under pressure from the Mongol Empire. While the Mongols under Genghis Khan invaded Jin, a Khitan chief Yelü Liuge (耶律留哥) revolted against the dynasty in Liaodong in 1211 and made contact with the Mongol Empire in the next year. In 1214 Jin dispatched Puxian Wannu to Liaodong, but he was defeated around Kaiyuan. While Mukhali of the Mongol Empire invaded Northern China, Puxian Wannu rebelled against Jin and founded the Dazhen (大眞) kingdom in Dongjing (Liaoyang) in 1215. He adopted the title of Tianwang (天王 lit. Heavenly King) and named his era Tiantai (天泰).