Tang Daizong Li Yu (65438+7271October 9th-10/June 779) was originally named Li Chu, the eldest son of Tang Suzong Hengli. Guangping Wang Baocun was intact, and later the king of Chu was blocked. During the Anshi Rebellion, Chang 'an and Luoyang were successively recovered in the name of the world marshal. In the first year of Gan Yuan (758), he was made the Crown Prince. In the first year of Baoying (762), Li Yu ascended the throne. The following year, the Anshi Rebellion was put down. During Li Yu's administration, he reformed the grain transportation, salt price and grain price, and implemented the fiscal policy of stabilizing society, developing production and "supporting the people first".

On the second day of May in the 14th year of Dali (779), news came from the palace that Daizong was ill. This disease is very serious. In less than ten days, Daizong will not be able to go to court. On may 20, the imperial edict was issued, allowing the crown prince to supervise the country. That night, Dai Zong died in the inner hall of Chen Zi in Daming Palace. In August, Geng Shen, the ministers respected Emperor Xiaowu of Wen Rui, and the temple number was Daizong.