"'La Lupa' is also a name for the priestesses of a fox goddess, leading to an alternative theory that the she-wolf was human. Another interpretation suggests that the nurturers were harlots ('Lupa' or 'she-wolf' being a nickname for prostitutes in ancient Rome).
Romulus and Remus were discovered by Faustulus, a shepherd, who brought the children to his home. Faustulus and his wife, Acca Larentia, raised the boys as their own. Because of her supposed immoral character, some traditions identify Larentia as the ex-prostitute 'she-wolf' who suckled Rome's founders.
As the two boys grew to men, they were told of their true origins. They raised an army and marched on Alba Longa. Amulius was slain in battle and Numitor was restored to his throne.
The twins decided to found a new city close to where they had been washed ashore, caught by the fig tree. The twins disputed which hill their city should be built on, Romulus favouring the Palatine, Remus choosing another (possibly the Aventine)."