Türgan
Türgan refers to a historical region located in present-day northeastern China and parts of eastern Mongolia. The exact boundaries and extent of Türgan have varied over time and across different historical sources. It is primarily associated with the Jurchen peoples and their early polities. The name itself is believed to be of Jurchen origin.
During the Song dynasty in China, Türgan was a significant frontier area, often interacting with Chinese states
Later, during the Mongol Empire and its successor states, the region continued to be inhabited by Jurchen