Li Chenghong (李承宏), commonly known as the Prince of Guangwu (廣武王), was an imperial prince of the Chinese Tang dynasty who was briefly declared emperor in 763 by invading Tibetan forces after they had captured the Tang capital Chang'an.
[5] At one point, he was accused of improper associations with people and was demoted to be the secretary general to the prefect of Fang Prefecture (房州, in modern Shiyan, Hubei),[6] but was later recalled to the capital Chang'an and given the honorary title of minister of imperial clan affairs (宗正卿), but did not actually run the ministry of imperial clan affairs.
A Tibetan general who defected from Tang, Gao Hui (高暉), and the Tibetan general Nganlam Takdra Lukhong (aka Ma Chongying, 馬重英) jointly declared Li Chenghong emperor, commissioning over 100 people as imperial officials, including the imperial scholars Yu Kefeng (于可封) and Huo Gui (霍瓌) as chancellors.
Soon, with the Tang general Guo Ziyi mounting a resistance movement, Tibetan forces pillaged the city and departed on November 30, 763.
Emperor Daizong issued a pardon for him but exiled him to Hua Prefecture (華州, in modern Weinan, Shaanxi).