Qìngfú

Qingfu was a county in the hills south of Xuzhou, between the valleys leading towards the Sichuan-Yunnan frontier. Established in the Northern Song, it stood near Shimen Pass, an old route through the mountains. In 1373, during the early Ming, a rising led by the Yi chief Bian Zhang spread into the lands around Qingfu and neighbouring counties, bringing warfare to the frontier district.