Wuyashu

Wuyashu (c. 1061–1113) was a chieftain of the Wanyan tribe, the most dominant among the Jurchen tribes which later founded the Jin dynasty (1115–1234). He was the eldest son of Helibo and the elder brother of Aguda (Emperor Taizu), the founder and first emperor of the Jin dynasty. He was posthumously honoured with the temple name Kangzong.

==Life== Wuyashu was born to the Jurchen chieftain Helibo in 1061. He inherited the leadership position of the Wanyan tribe from his uncle, Yingge (盈歌), in 1104. Yingge died during the conquest of Helandian (曷懶甸; present-day Hamgyong Province, North Korea) after pacifying the Tumen River basin. Wuyashu resumed the project in the next year. Under his order, Shishihuan (石適歡) led a Wanyan army from the Tumen River basin to subdue rival Jurchen tribes in Helandian and advance southward to chase about 1,800 remnants who defected to the Korean kingdom Goryeo. Goryeo did not hand them over but sent Im Kan (林幹) to intercept the Wanyan army. However, Shishihuan defeated Im Kan north of the Chŏngp'ŏyng wall and invaded northeastern frontier of Goryeo. Goryeo dispatched Yun Kwan to resist the Jurchens but lost in battle again. As a result, Wuyashu subjugated the Jurchens in Helandian.