The river had overflowed its banks, and left the children on dry ground, where, however, they were found by a she-wolf, who fondled and fed them like her own offspring, until a shepherd met with them and took them home to his wife.

She called them Romulus and Remus, and bred them up as shepherds.
When the twin brothers were growing into manhood, there was a fight between the shepherds of Numitor and Amulius, in which Romulus and Remus did such brave feats that they were led before Numitor.

He enquired into their birth, and their foster-father told the story of his finding them, showing the trough in which they had been laid; and thus it became plain that they were the grandsons of Numitor.

On finding this out, they collected an army, with which they drove away Amulius, and brought their grandfather back to Alba Longa.
They then resolved to build a new city for themselves on one of the seven low hills beneath which ran the yellow river Tiber; but they were not agreed on which hill to build, Remus wanting to build on the Aventine Hill, and Romulus on the Palatine.

Their grandfather advised them to watch for omens from the gods, so each stood on his hill and watched for birds.