The gens Tarutia, also found as Tarrutia, was an obscure plebeian family at ancient Rome. Few members of this gens are mentioned in Roman history, of whom the best-known is probably Lucius Tarutius Firmanus, a noted mathematician and astrologer of the first century BC.
Firmanus, the cognomen of the mathematician Lucius Tarutius, was derived from his original home of Firmum in Picenum.[1]