He ascended the throne at the age of 26 and died at the age of 30, having five sons in his lifetime, but three sons becoming emperors
"Li Yu's Night Attack on Caizhou" is a war that occurred during the middle and late Tang Xianzong period, Tang Xianzong, as an outstanding emperor of the Tang Dynasty, once had a very good deed, and his talent was compared to Li Shimin and Li Longji by posterity, but unfortunately he did not complete the comprehensive revival of the Tang Dynasty. After his death, he was succeeded by his 26-year-old third son, Li Heng, as Emperor Muzong of Tang.
According to the fact that this age is in its prime, Tang Muzong can emulate Tang Taizong or Tang Ming Emperor, both of whom almost all ascended the throne at this age and took advantage of their youthful strength to show their skills. But the difference between people and people is too big, the same age Li Heng, since coming to power has been intoxicated with eating, drinking and having fun, for the governance of the country has never been in the heart, Tang Xianzong formed the ZTE situation, in Li Heng's view is a very good capital, can be squandered at will, in fact, Tang Xianzong did not like the third son very much when he was in power, as a candidate for the throne more admired the eldest son, but the eldest son died of a strange illness at the age of 19, which was a great blow to Tang Xianzong.
Li Heng had one of his biggest patrons was his mother Guo Guifei, the granddaughter of Guo Ziyi, and Xianzong was inclined to succeed to the throne by his second son after the death of his eldest son, which also sold mines for Tang Xianzong's untimely death, and the assassination of Tang Xianzong can basically be regarded as the result of the political struggle behind the heir.
Li Heng died at the age of 30 because of excessive indulgence, when Tang Muzong had five sons, and in 824 his eldest son Li Zhan succeeded to the throne as Tang Jingzong. This young Tianzi, who also studied Tang Muzong, liked to have fun, did not like to take care of the government, and reused his father's eunuch at that time, and was killed by the eunuch Liu Keming two years later. In 826, Li Heng's 18-year-old second son Li Ang succeeded him as Emperor Wenzong of Tang. After Emperor Wenzong of Tang came to power, he appointed meritocrats and exerted great efforts to govern, but the power of the eunuch clique that began in the middle and late Tang Dynasty had developed very strongly, and in 835 he was placed under house arrest after the failure of the Ganlu Incident and died in 840.
In 840, Li Heng's fifth son, Li Yan, succeeded to the throne as Emperor Wuzong of Tang, a relatively enlightened monarch who reused sages in his tenure and was far stronger than his two older brothers and father in excluding eunuchs.
Although Li Heng was not very good, his three sons continued to be emperors, which were rare in history.