 As then-reigning Emperor Xianzong was already waging a campaign against another warlord, Wang Chengzong, who ruled Chengde Circuit (成德, headquartered in modern Shijiazhuang, Hebei), at the time, he felt that he could not act against Wu Shaoyang as well, so he made his son Li You the Prince of Sui the titular military governor of Zhaoyi and gave Wu Shaoyang the title of acting military governor in spring 810.In spring 811, Wu was made military governor.It was said that during the years he was military governor, Wu Shaoyang did not pay homage to the emperor.