Li Tan
Li Tan (李倓) (died 757), known by his princely title of
Prince of Jianning (建寧王), posthumously honored as the
Prince of Qi (齊王) and then
Emperor Chengtian (承天皇帝, literally "the emperor who bore the heaven"), was an imperial prince of the
Chinese Tang dynasty. He was a son of
Emperor Suzong who was credited with suggesting to his father the idea of fleeing to
Lingwu during the
Anshi Rebellion, allowing Emperor Suzong to eventually reestablish a power base and defeat the rebellion. He was also credited with protecting his father on the way to Lingwu. However, he offended Emperor Suzong's favorite
concubine Consort Zhang and the powerful eunuch
Li Fuguo by accusing them of crimes; in turn, they accused him of having designs on the life of his older brother
Li Chu the Prince of Guangping, causing Emperor Suzong to order him to commit suicide. After Li Chu became emperor in 762 (as Emperor Daizong), he posthumously honored Li Tan, first as the Prince of Qi, and then as Emperor Chengtian, to recognize him for his contributions.
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