南詔
(
798年～
816年)
勸竜晟（798年－816年），一作竜盛，尋閣勸之子，南詔第五代國王，808年至816年在位。勸竜晟年少即位，荒淫無道，南詔王權開始衰落。816年，弄棟節度使王嵯巔殺死勸竜晟，其弟勸利晟即位，謚號幽王。
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.