Niu Sengru
Emperor Muzong died in 824 and was succeeded by his son Emperor Jingzong. Upon enthronement, Emperor Jingzong conferred the honorary title of "Yinqing Guanglu Daifu" () on Niu Sengru, and also created him the Viscount of Qizhang. Late in the year, Emperor Jingzong upgraded his honorary title to "Jinzi Guanglu Daifu" and created him the Duke of Qizhang — a title that his ancestor Niu Hong had carried. Emperor Jingzong also put him in charge of editing the imperial history.