 Meanwhile, pursuant to Emperor Dezong's orders, Zhu Tao the acting military governor of Lulong Circuit (盧龍, headquartered in modern Beijing), had launched a campaign against Chengde.Zhu was quickly able to persuade Zhang Xiaozhong to surrender Yi Prefecture to the imperial cause.Emperor Dezong named Zhang the new military governor of Chengde and ordered that Li Weiyue escort Li Baochen's casket to Chang'an.