Chouchi
Its existence spanned both the Sixteen Kingdoms and Northern and Southern dynasties periods, but it is not listed among one of these regimes in historiography.[1][2][3][4] At the beginning of the 3rd century CE, Yang Teng (楊騰), chieftain of the White Neck Di (白項氐), had occupied the southeast area of modern Gansu province, at the upper course of the Han River.In 322, Yang Nandi suffered a defeat at the hands of Han-Zhao and was degraded to prince of Wudu (武都王) and duke of Chouchi (仇池公).The following years were characterized by numerous internal struggles among the Yang clan and several usurpations of the throne.His younger brother Yang Sheng (楊盛) was able to conquer the region of Liangzhou (梁州) at the upper course of the Han River, and declared himself governor for the Jin Dynasty.