Search the dictionary A Chinese word or character, or English Draw a character Search 1 entry. lǐjiànchéng 李建成 Li Jiancheng (589-626), eldest son of first Tang emperor Li Yuan 唐高祖李淵|唐高祖李渊, murdered by his brother 李世民 in the Xuanwu Gate coup 玄武門之變|玄武门之变