南诏
(
798年～
816年)
劝龙晟（798年－816年），一作龙盛，寻阁劝之子，南诏第五代国王，808年至816年在位。劝龙晟年少即位，荒淫无道，南诏王权开始衰落。816年，弄栋节度使王嵯巅杀死劝龙晟，其弟劝利晟即位，谥号幽王。
Advised Long Sheng (798 -816), the one for Longsheng, seeking Court advised the son of King of Nan Zhao fifth generation, 808 years to 816 years in office. Sheng Long advised the throne young, dissolute without Road, Nan Zhao kingship began to decline. 816, Alley Building Jiedushi Wang Sheng Long lofty summit urged to kill, his brother advised Lee Sheng came to the throne, posthumous name, You Wang.