Li Cong

Li Cong (died 752), né Li Sizhi, known as Li Tan from 725 to 736, posthumously honored Crown Prince Jingde and then Emperor Fengtian (奉天皇帝, literally, "the emperor who submitted to Heaven"), was an imperial prince of the Chinese Tang Dynasty. He was the oldest son of Emperor Xuanzong but, despite that status, was never made crown prince, bypassed in favor of his younger brothers Li Ying and Li Heng (the later Emperor Suzong). After Li Heng became emperor, he posthumously honored Li Cong as an emperor. Background It is not known when Li Sizhi was born, but it is known that he was the oldest son of Li Longji, then the Prince of Linzi under Li Longji's uncle Emperor Zhongzong. His mother Consort Liu, who would eventually receive the imperial consort rank of Huafei, the third highest rank for imperial consorts, later bore two more sons for Emperor Xuanzong, Li Wan the Prince of Rong (né Li Sixuan and Li Sui the Prince of Yi (né Li Wei. In 710, after Li Longji's father Li Dan became emperor (as Emperor Ruizong), Li Longji was created crown prince, and his sons were created princes. Li Sizhi was created the Prince of Xuchang. During Emperor Xuanzong's reign In 712, Emperor Ruizong yielded the throne to Li Longji, who took the throne as Emperor Xuanzong. Li Sizhi's title was upgraded to Prince of Tan. In 715, however, he was bypassed for the crown prince position when his younger brother Li Siqian the Prince of Ying was selected, as Li Siqian's mother Consort Zhao was then Emperor Xuanzong's favorite concubine. In 716, Li Sizhi was made the Protectorate General to Pacify the West and received the title of "Comforter of the Non-Han of the Hedong [(modern Shanxi)], Guannei [(i.e., Guanzhong)], and Longyou [(modern eastern Gansu)] Regions" (安撫河東關內隴右諸蕃大使, Anfu Hedong Guannei Longyou Zhufan Dashi), although there was no evidence that he actually left the capital Chang'an. In 725, Li Sizhi's name was changed to Li Tan, and his title was changed to Prince of Qing.