Sīzhōu

Sizhou was a hereditary Tian clan chiefdom in the upper Wu valley of Guizhou. The Yuan established a xuanwei commission there in 1281.

In 1362 Tian Renhou pledged loyalty to Zhu Yuanzhang, but his uncle Tian Mao'an seized Zhenyuan and Sinan two years later, dividing the domain into Sizhou and Sinan. In 1411 Tian Chen attacked Sinan over sand pits; Ming troops captured him in 1412 and executed him in 1413. The Ming abolished both chiefdoms and divided their lands among eight prefectures in Guizhou.