of the Shence Armies. Control by Zhu Quanzhong and movement to Luoyang After Emperor Zhaozong returned to Chang'an, the capital became under the military control of the Xuanwu contingent; while Zhu Quanzhong himself returned to Xuanwu's capital Daliang, he left his nephew Zhu Youlun () in command at Chang'an. Cui Yin began to see signs that Zhu Quanzhong might be intending to seize the throne and became fearful, and therefore began to rebuild the imperial guards with himself in command, and a rift began to develop between Zhu and Cui. The rift became deeper after Zhu Youlun died in an accident while playing polo late in 903, which Zhu Quanzhong believed to be a murderous plot set up by Cui. He sent another nephew, Zhu Youliang (), to succeed Zhu Youlun, and further sent Xuanwu soldiers to infiltrate the imperial guards corps that Cui was trying to rebuild. In spring 904, he acted, writing to Cui and his associates Zheng Yuangui () the mayor of Jingzhao Municipality (京兆, i.e., the Chang'an region) and the officer Chen Ban (), and then sending Xuanwu soldiers to surround Cui's mansion and kill Cui and his associates. Then, citing the possibility that Li Maozhen and his adoptive son Li Jihui (not the same person as the one killed in 903) the military governor of Jingnan Circuit may attack Chang'an, he forced Emperor Zhaozong to abandon Chang'an and move the capital to Luoyang. While on the journey to Luoyang, Emperor Zhaozong sent secret orders to Wang Jian, Yang Xingmi the military governor of Huainan Circuit (淮南, headquartered in modern Yangzhou, Huainan), and Li Keyong, asking them to start a campaign against Zhu Quanzhong, but his orders drew no immediate reactions. Death Meanwhile, Zhu Quanzhong had long wanted to kill Li Yu, outwardly on the account that Li Yu had once improperly taken the throne (albeit under the eunuchs' pressure), but truly because he was apprehensive of Li Yu's status as the emperor's oldest son and his handsome appearance. Emperor Zhaozong resisted Zhu's wishes on this issue. Further, at that time, Li Maozhen, Li Jihui, Li Keyong, Liu Rengong the military governor of Lulong Circuit (盧龍, headquartered in modern Beijing), Wang Jian, Yang Xingmi, and Zhao Kuangning the military governor of Zhongyi Circuit (忠義, headquartered in modern Xiangyang, Hubei) were all issuing declarations calling for the emperor's return to Chang'an. Zhu became apprehensive that, as he