李克用
Later in the year, Emperor Xizong again summoned Li Keyong to aid in the imperial cause in attacking Huang Chao's Qi state, and this time, pursuant to imperial orders, Zheng did not again intercept Li Keyong. Li Keyong subsequently became the leading general in the Tang campaign to recapture Chang'an. In 883, Emperor Xizong made Li Keyong the military governor of Hedong and Li Guochang the military governor of a newly created Daibei Circuit (代北), with its headquarters at Dai Prefecture.