Emperor Jingzong of Tang (July 22, 809 – January 9, 827), personal name Li Zhan, was an emperor of the Tang Dynasty of China. He reigned from 824 to 827. Emperor Jingzong was the eldest son of emperor Emperor Muzong and elder brother of eventual Emperor Wenzong and Emperor Wuzong. Emperor Jingzong became emperor at the early age of 15 and his short reign would be overshadowed by corrupt eunuchs with control over the imperial Shence Army (), who would come to dominate his rule as well as that of his younger brother Emperor Wenzong. Uninterested in ruling, Jingzong gave in to pleasure seeking and lived in opulence while eunuchs such as Wang Shoucheng and officials such as Li Fengji held onto real power. Around the new year 827, after reigning less than four years, emperor Jingzong was assassinated by a group of conspirators. Emperor Jingzong was only 17 when he died. Prior to reign Li Zhan was born in 809, as the oldest son to then-Prince of Sui, Li You, a son of then-reigning Emperor Xianzong. His mother was Li You's concubine Consort Wang, who gave birth to Li Zhan at a side hall of the Eastern Palace (i.e., the palace of the Crown Prince, although Li You was not then Crown Prince). In 821, by which time Emperor Xianzong had died, and Li You (whose name had been changed to Li Heng by that point) was emperor (as Emperor Muzong), Emperor Muzong created a number of his younger brothers and sons imperial princes, and Li Zhan was created the Prince of Jing. Around new year 823, when Emperor Muzong was at a polo match, there was a mishap where a eunuch fell from his horse—causing much shock for Emperor Muzong and leading to a debilitating stroke, causing him to be unable to rise. Many officials, including the leading officials Pei Du and Li Fengji requested that he create a crown prince, and Emperor Muzong, after initially not responding, created Li Zhan crown prince. In spring 824, Emperor Muzong, who had initially recovered from his illness, grew ill again. He issued an order having Li Zhan serve as regent during his illness, and even though the eunuchs requested that Emperor Muzong's mother Empress Dowager Guo declare herself regent, she resisted the request—stating that she did not want to be like Wu Zetian. That night, Emperor Muzong died, and Li