sentences:  Balhae was conquered by the Khitan Liao Empire in  926.The Blackriver Mohe are sometimes linked with the Jurchen who established China's Jin Dynasty in the 10th century and who later formed the core of the Manchu who established the Qing Dynasty in the 17th century.At the time of their notice by Chinese historians, the Jurchen inhabited the forests and river valleys of the land which is now divided between China's Heilongjiang Province and Russia's Maritime Province, outside the range of the Blackriver Mohe, and such links remain conjectural.