The Female Wolf  ( la Lupa ):
The history relating to the founding of Siena is today for the most part obscure. It was almost certainly an Etruscan city and then Roman, as one can gather from its symbols: the female wolf that nurses the twins Romulus and Remus and the black and white blaze. According to the legend of Siena the founding  fathers of Siena were Senio e Ascanio, the sons of Remus, who, having escaped from their uncle Romulus, constructed the Castle Senio. When escaping, the brothers took with them the statue of the temple of apollo in Rome. On founding the castle at Siena they decided the colors for their standard black for Ascanio , white for Senio.