Zīzhōu

Zizhou was a Song-era district in the mountain country along the Chishui River, on the approaches between Sichuan and northern Guizhou. In 1109 local leaders submitted their territories to the Song court, which established several prefectures here, including Zizhou. Renhuai County was placed under it, with its seat near the river. The land later came under the hereditary rulers of Bozhou, whose influence extended across the rivers and ridges of this frontier.