plebeian, but one of the most illustrious houses among the Roman nobility. Suetonius says (Tib. 3) that the Livii had obtained eight consulships, two censorships, three triumphs, a dictatorship, and a mastership of the horse. The first member of the gens who obtained the consulship was M. Livius Denter, B. C. 302; and it at length rose to the imperial dignity by the marriage of Livia with Augustus, whose son Tiberius by a former husband succeeded the latter in the government of the Roman world. The cognomens in this gens are DENTER, DRUSUS, LIBO, MACATUS, and SALINATOR.