Zonaras 7, 3.
B.C. 753 Romulus has been described as eighteen years old when he joined in settling Rome. He founded it around the dwelling of Faustulus; the place had been named Palatium.
Tzetzes in Lycophr. Alex. v. 1232.
to death, but the babes were given to Faustulus, a shepherd, husband of Laurentia, to be exposed beside the river Tiber. These the shepherd's wife took and reared; for it happened that she had at that time borne a dead child. When Romulus and Remus were grown they kept flocks in the fields of Amulius, but as they killed some of the shepherds of their grandfather Numitor a watch was set for them. When Remus was arrested, Romulus ran and told Faustulus, and he ran and related the whole story to Numitor. Finally Numitor recognized them as his own daughter's children. They with the assistance of many others killed Amulius, and after bestowing the kingdom of Alba on their grandfather Numitor made a beginning themselves of founding Rome in the eighteenth year of Romulus' life. [But prior to this great Rome,] which Romulus founded on the Palatine mount near the dwelling of Faustulus, [another Rome in the form of a square had been founded by a Romulus and Remus more ancient than these.]
Eustathius in Odyss., p. 1961, 13-16.
Among these [i.e., children suckled by animals], according to Dio, were also the founders of Rome (that is to say, Remus and Romulus), who were suckled by a wolf, called by the Italians lupa; this name has been aptly applied as a term for courtesans.