Itun
The Itun are the Jurchen group of the Itun river (Manchu Ituŋ ula), which flows past Changchun into the Second Songhua system, where the Buyeo once built a royal city. In the fourteenth century the valley belonged to the Yuan province of Liaoyang, and under the Ming it was held through the Nurgan guards before passing to the Yehe tribe.