李嗣昭
In spring 901, Xuanwu forces under Shi launched a major attack against Hedong, advancing all the way to Hedong's capital Taiyuan Municipality and put it under siege. The city almost fell, but eventually, with Xuanwu forces bogged down by rain and running out of food supplies, Zhu recalled Shi. As Shi was retreating, Zhou and Li Sizhao attacked him, inflicting losses. Later in the year, Li Keyong sent Li Sizhao and Zhou to capture Xi () and Ci (慈州, both in modern Linfen, Shanxi, not the same prefecture as the one east of the Taihang Mountains) Prefectures, which had become under Zhu's control when Zhu conquered Huguo Circuit (護國, headquartered in modern Yuncheng, Shanxi) earlier in 901.