Zhou Ji
In 881, when the eunuch general Yang Fuguang was able to persuade Zhou Ji the military governor ("Jiedushi") of Zhongwu Circuit (忠武, headquartered at Xu Prefecture) to renounce his allegiance to Huang Chao — a major agrarian rebel who had captured the Tang capital Chang'an, forced then-reigning Emperor Xizong (Emperor Xuānzong's grandson) to flee to Chengdu, and declared himself the emperor of a new state of Qi — and return to the Tang fold, Yang also persuaded Qin to send forces to contribute to the war efforts against Huang's Qi state. Yang organized his army into eight corps, commanded by Lu Yanhong, Jin Hui (), Wang Jian, Han Jian, Zhang Zao (), Li Shitai (), and Pang Cong () respectively. Han thereafter served under Yang.