 These, a branch of whom at a later date also appeared under the name of Filicaia, settled in Florence at the end of the 12th century and in 1207 sold a large part of its territory of jurisdiction to the Bishopric of Florence.In 1375 Florence had a castle erected here for an essentially strategic use on the land of Pontassieve.First the town took the name of "Castel Sant’Angelo" (Saint Angel Castle), later obtaining the current referring to the importance of the bridge on the river, that was the main way joining the Republic of Florence to the territories of the Mugello, Casentino and the city of Arezzo.