Shuǐdōng

Shuidong, or the country east of the river, was the domain of the hereditary Song family on the eastern side of the Yachi River. Its chiefs governed a wide area around Guizhou city and the northern hills, with their own subordinate local offices. Under the Ming the Song shared the Guizhou native administration with the An family of Shuixi, whose lands lay west of the river.

In 1372 Song Qin submitted to the Ming and was recognised as a Guizhou native official. The Song seat was moved to the city alongside that of the An, although the family continued to hold its lands in Shuidong. During the upheavals of the 1620s Song Sichin joined an uprising against the Ming and was captured. In 1631 the court abolished the hereditary office and established Kaizhou in much of its territory.