Li Jiang
In 820, after Emperor Xianzong died and was succeeded by his son Emperor Muzong, Huangfu Bo was exiled, and Li Jiang was recalled to again serve as minister of defense. He was soon made the chief imperial censor (御史大夫, "Yushi Daifu"). As Emperor Muzong was often spending time on tours and games, Li Jiang tried to correct his behavior, but Emperor Muzong would not follow his advice. He therefore offered to resign, but was instead again made the minister of defense. In 821, he was made the minister of civil service affairs (吏部尚書, "Lìbu Shangshu", note different tone than the minister of rites). Later in the year, he was made the defender of the eastern capital Luoyang. In 822, he was made the military governor of Yanhai Circuit (兗海, headquartered in modern Jining, Shandong). In 823, he was again made the defender of Luoyang. In 824, he was given the title of acting "Sikong" (司空, one of the Three Excellencies). Around this time, he also served for some time as the military governor of Dongchuan Circuit (東川, headquartered in modern Mianyang, Sichuan).