牛僧孺
In 830, by which time Emperor Jingzong's younger brother Emperor Wenzong was emperor, Li Zongmin was a chancellor. When, in spring 830, Niu Sengru went to Chang'an to pay homage to Emperor Wenzong, Li Zongmin argued to Emperor Wenzong that Niu was capable and should be kept at the central government. Emperor Wenzong thus again made Niu a chancellor with the title of "Tong Zhongshu Menxia Pingzhangshi", as well as the minister of defense (兵部尚書, "Bingbu Shangshu"). It was said that, with Niu and Li Zongmin in power, they spent much effort in expelling Li Deyu's partisans out of the central government.