Du (775 -838), a native of Jingzhao (Sanzhao Village, Xi, Shaanxi), the grandson of Du Ruhui V, was a scholar in the 16th year of Zhenyuan (800). Gradually, he was promoted to a bachelor of Hanlin with a right vacancy. Hengli, a native of Tang Muzong, was very lucky for him and was awarded the position of Sherman and Assistant Minister of the Ministry of Finance as a bachelor. In the first year of Changqing (82 1), Anxian was a feudal duke. In the third year of Changqing (823), he served as my ambassador and general manager of Jiannan Xichuan. Later, due to unfavorable guarding Shu, he was demoted to the secretariat of Shaozhou. It was also demoted to Sima Zhou Xun. In the third year of Kaicheng (838), Du died at the age of 64. In the early years of Huichang, Li Deyu became prime minister, so he wrote to restore his rank.