The origin of the surname "Teng": 1. It is from the "Ji" surname and derived from the name of a state. According to "Tongzhi - Clan Chronicles - Originating from the Name of a State", after King Wu conquered the Shang Dynasty, the 14th son of King Wen, Uncle Xiu, was enfeoffed in the State of Teng (present - day Teng County, Shandong). It was destroyed by the State of Yue in the early Warring States period. It was restored soon but later destroyed by the State of Song. His descendants took the surname Teng. Later, some of the Tengs changed their surname to "Teng" (a different character with the same pronunciation) to avoid danger.