siege of Chengdu. In fall 891, Chen and Tian surrendered to Wang, and Wang took over Xichuan Circuit. Initial conflict with Li Maozhen The end of the campaign against Li Keyong, which Yang Fugong had opposed, did not end the tension between Emperor Zhaozong and Yang, but intensified it. In fall 891, Yang sought to retire, and Emperor Zhaozong approved the retirement. Soon thereafter, rumors that Yang was planning a rebellion at Chang'an against the emperor, along with his adoptive nephew Yang Shouxin (). Emperor Zhaozong sent the imperial guards to preemptively attack Yang Fugong's mansion, and Yang Fugong and Yang Shouxin fled to Yang Shouliang's Shannan West Circuit. Yang Fugong thereafter started a rebellion against the imperial government, along with Yang Shouliang, Yang Shouxin, and other adoptive sons and nephews, including Yang Shouzhong () the military governor of Jinshang Circuit (金商, headquartered in modern Ankang, Shaanxi), Yang Shouzhen () the military governor of Longjian Circuit (龍劍, headquartered in modern Mianyang, Sichuan), and Yang Shouhou () the prefect of Mian Prefecture (綿州, also in modern Mianyang). In response to the Yangs' rebellion, Li Maozhen the military governor of Fengxiang Circuit (鳳翔, headquartered in modern Baoji, Shaanxi), along with his allies Wang Xingyu the military governor of Jingnan Circuit (靜難, headquartered in modern Xianyang, Shaanxi) and Han Jian, as well as his brother Li Maozhuang () the military governor of Tianxiong Circuit (天雄, headquartered in modern Tianshui, Gansu) and Wang Xingyu's brother Wang Xingyue () the military governor of Kuangguo Circuit (匡國, headquartered in modern Weinan), submitted a joint petition for Li Maozhen to be made the commander of the forces against the Yangs. Emperor Zhaozong, while inimical to the Yangs, was hesitant to give Li Maozhen more authority and territory, and therefore initially denied the request. However, Li Maozhen and Wang Xingyu launched an attack anyway, forcing Emperor Zhaozong into approving Li Maozhen as the commander against the Yangs. By winter 892, Xingyuan had fallen to Li Maozhen, and the Yangs fled (and were eventually captured by Han and delivered to Chang'an to be executed). Li Maozhen wanted to add Shannan West to his territory, so he requested to be Shannan West's military governor, fully expecting that Emperor Zhaozong would allow him to retain both Fengxiang and Shannan West. Instead, Emperor Zhaozong issued an edict making him the military governor of Shannan West and Wuding (武定, headquartered in modern Hanzhong)