Dǔyáng

Duyang was a Zhuang tusi of the Si'en prefecture in central Guangxi, seated on the Hongshui River in present-day Du'an County under Hechi.

Together with Anding, Baishan and six neighbouring offices, it was set up in 1528 as part of Wang Shouren's settlement after the Tianzhou war, which replaced the broken power of the Cen chiefs with a ring of smaller hereditary chieftaincies. Duyang's native officers answered to the Si'en prefect and kept their hereditary posts through the Ming and the Qing.