李孟字道复,潞州上党人。潞州上党,今山西长治市。按刘敏中《李唐神道碑》(《中庵集》卷六)称其家为“后唐雁门之裔,世为潞著姓”。“雁门”指唐末突厥沙陀部首领李克用,僖宗召其讨伐黄巢,授雁门节度使(见《旧五代史》卷二五《后唐武皇纪上》),克用子李存勖建立后唐。姚燧《李道复曾祖考执赠韩国公制》(《牧庵集》卷二):“尚论其世,孰逾其家。自后唐仅十五传, Li Meng word complex, Luzhou Shangdang people. Luzhou Shangdang, Shanxi Changzhi City today. According to Liu Minzhong ”Li Tang Shinto Monument“ (”Central Umrah set“ Volume VI) said its home ”after the Tang Yanmen descendants of the world for the Lu surname “. ”Yanmen “ refers to the end of the Tang Dynasty Shatuo ministry leader Li Ke, Yong summoned its crusade against Huang Chao, grant Yanmeng Jiedushi (see ”Old Five Dynasties“ volume twenty-five ”after Tang Wu Huang Ji“), grams After the establishment of sub-Li Cun-tang Tang. Yao Sui, ”Li Daofu Zu Zao test grants Korean Metric“ (”Animal Husband Set“ Volume II): ”Shang Shangjishi, more than its home since the Tang Dynasty only fifteen,