In May of the 14th year of Dali (779), Dai Zong died in Chang 'an Palace. Shi Li acceded to the throne at the age of 38, namely Tang Dezong. During Shi Li's mourning, all his actions were in accordance with the law. Shi Li was the eldest son of the ninth emperor of the Tang Dynasty (from May 762 to June 779, when 10 reigned), and his mother was Empress Wu.

Shi Li's political affairs:

In the second year after Shi Li succeeded to the throne, in order to improve finance, he adopted the suggestion of Prime Minister Yang Yan, abolished mediocrity and promulgated the "two tax laws".

In the early days of the rule, in order to appease the abuses of the buffer region, the system of suzerain and vassal was changed, the regime of the buffer region was resolutely weakened, and centralization was strengthened. However, due to improper handling, the old rebels were often destroyed and a group of rebels who were originally loyal to the court were aroused.

In 783, four years after the founding of the People's Republic of China, due to the unfair reward from the court, Jingyuan mutiny was aroused, and Dezong fled to Fengtian (now Ganxian County, Shaanxi Province) in a hurry. Former Lulong made Juba be placed under house arrest in the capital in his early years. With the support of the rebels, he proclaimed himself emperor and changed his country name to Qin.

In the early period of Dezong, officials insisted on appointing civil and military officials and prohibited eunuchs from interfering in politics, which was quite a resurgence. However, after the Jingyuan mutiny, the successive dishonor of civilian military commanders was in sharp contrast with the loyal guards of the eunuch group, which made Dezong completely give up his previous ideas. After the change of Zhenyuan, Dezong appointed eunuchs as the commander-in-chief of the imperial army to control the army to prevent mutiny, and the eunuch army supervision system began to be established.

Reference to the above content: Baidu Encyclopedia-Shili