 Chen and Xu were able to capture the Zheng city Liangcheng (梁城, in modern Ruzhou, Henan).In winter 621, Li Fuwei sent Wang Xiongdan against Li Zitong.Wang, after first tricking Li Zitong into a panic back to Hangzhou (杭州, in modern Hangzhou, Zhejiang), forced Li Zitong to surrender.