Reign: 25 April 846 - 7 September 859
Temple name
Posthumous name
Emperor Xuanzong of Tang (27 July 810 – 7 September 859) was an emperor of China's Tang dynasty, reigning from 25 April 846 until his death. Personally named Li Yi, later renamed Li Chen (Chinese: 李忱), and known before his reign as the Prince of Guang, he was considered the last capable emperor of Tang China. Succeeding emperors after Xuanzong would either be too young or be dominated by eunuchs or warlords. Emperor Xuanzong was the 13th son of Emperor Xianzong (r. 806–820) and an uncle of the previous three emperors, Emperor Jingzong, Emperor Wenzong, and Emperor Wuzong.
To distinguish Emperor Xuanzong from his ancestor Emperor Xuánzong (personal name Li Longji), as their temple names are rendered identically in Wade–Giles and when pinyin tonal marks are not used, Xuanzong is occasionally referred to as Xuanzong II in western sources; in Chinese, however, their memorial titles (宣宗 for him and 玄宗 for Li Longji) are clearly distinct and this device is not used.
Li Yi was born in 810, at Daming Palace (大明宮), as the 13th of 20 known sons of then-reigning Emperor Xianzong. His mother was Emperor Xianzong's concubine Consort Zheng, who had previously been a concubine of the warlord Li Qi and who, after imperial forces defeated Li Qi in 807, was taken into Emperor Xianzong's palace to be a servant girl to Emperor Xianzong's wife Consort Guo, but who at some point bore Li Yi for Emperor Xianzong. After Emperor Xianzong died in 820, Li Yi's older brother Li Heng, born of Consort Guo, became emperor (as Emperor Muzong), and in 821, when Emperor Muzong created a number of his sons and brothers to be imperial princes, Li Yi was created the Prince of Guang.
The Tang Dynasty History & Timeline