Pei Du
Shortly after Emperor Muzong died in 824 and was succeeded by his son Emperor Jingzong, Wang Tingcou heard of Niu Yuanyi's death and slaughtered Niu's family — leading the new emperor to lament that the chancellors were incompetent. As of 826, Emperor Jingzong was originally intent on visiting the eastern capital Luoyang and restoring the early Tang customs of the emperor spending time in both the main capital Chang'an and Luoyang. Both Wang and Zhu Kerong sent arrogantly-worded offers to contribute troops to repair the long-ruined palaces and governmental offices at Luoyang, offers that Emperor Jingzong declined, and Emperor Jingzong subsequently abandoned the plan to visit Luoyang, at the urging of the senior chancellor Pei Du.