Li Hui
Emperor Wenzong died in 840 and was succeeded by his brother Emperor Wuzong — and as Emperor Wuzong was named Li Chan (李瀍), albeit a different character than Li Chan's name, Li Chan changed his name to Li Hui to observe naming taboo. Li Deyu became lead chancellor, and thereafter, Li Hui became deputy minister of public works (工部侍郎, "Gongbu Shilang"), then deputy minister of census (戶部侍郎, "Hubu Shilang"). In 843, he was also made deputy chief imperial censor (御史中丞, "Yushi Zhongcheng").