The town of San Vincenzo is in the province of Livorno along the coast of the Tyrrhenian Sea and it has a population of about 6,500 inhabitants. San Vincenzo is a famous seaside resort where to spend relaxing holidays and it is renowned for its tourism port and for its numerous restaurants that offer a wide range of typical dishes.

The Tower of San Vincenzo was the first evidence of the human presence in the coastal side of the town. It seems that the Etruscans raised it and the later the Romans restructured it to garrison the Aurelia valley. In the Middle Ages, the area corresponding to the modern San Vincenzo was occupied by the castle of Biserno that belonged to the counts Della Gherardesca.
Yet, the Pisan dominion was soon established in the fortress because the republic wanted to install a look-out post here to patrol that portion of sea against pirates and enemy ships. The castle was razed to the ground in 1304. Once San Vincenzo passed to Florence in 1406, it became the unintended protagonist of the last battle between Pisans and Florentines carried out on 17 August 1505 just near the town.
The Florentine army headed by Ercole Bentivoglio, definitively defeated Bartolomeo d'Alviano's Pisan troops. Since then, the undisputable dominion of the Tuscan regional capital that later became the capital of the Tuscan Grand Duchy. The territory of San Vincenzo went through a fast decline losing its strategic and military importance because of the political stability of modern Tuscany and because the progressive disappearance of pirates in the Tyrrhenian coasts.
After it entered the town of Campiglia Marittima it became autonomous only in 1949 an transformed itself into a peaceful and very crowded seaside centre.