Dūyún
Duyun was a native chieftaincy in the Sui and Bouyei hill country of southern Guizhou. The Yuan established the Duyun military and civilian chief's office in 1284, leaving local headmen to rule.
After the Ming general He Fu suppressed a Miao rising in 1390, the court changed the second character of its name; the Duyun Guard followed in 1395. The Ming made it a prefecture in 1494, and the Qing added Duyun County in 1672, extending direct administration over the surrounding valleys.