Shízhù

Shizhu was a Tujia tusi domain in the Yangtze gorges east of Chongqing. The early Yuan made it a military-civilian prefecture, and the Ming confirmed the Ma clan as hereditary commissioners.

Ma Qiancheng and his wife Qin Liangyu campaigned at Bozhou in 1599, where she led five hundred troops. After Ma died in prison in 1613, Qin succeeded him, fought the Later Jin and defended Shizhu against Zhang Xianzhong. She died in 1648; in 1761 the Qing replaced the tusi with a directly administered subprefecture.