Prince Shimin defeated Song Jin'gang at Queshu Valley; Liu Wuzhou then fled to the Turks, and Bingzhou was recovered. (New Book of Tang (Xin Tangshu), Annals 新唐書 卷001 高祖 武德3年4月)
In December 620, Gong You crosses the river, attacks and takes Danyang, and advances on Lishui; Zitong resists with tens of thousands of troops. (Zizhi Tongjian (Comprehensive Mirror) 권188 620년 항)