Santo Stefano Island

It is roughly circular, with a diameter of less than 400 metres (1,300 feet), and it is located 2 kilometres (1+1⁄4 miles) east of the nearby island of Ventotene.

People imprisoned included Carmine Crocco, the most important brigand during the Italian unification, and the anarchist Gaetano Bresci, who killed King Umberto I in 1900.

During the Fascist regime, other prisoners were the future President of Italy Sandro Pertini, Umberto Terracini, Giorgio Amendola, Lelio Basso, Mauro Scoccimarro, Giuseppe Romita, Altiero Spinelli and Ernesto Rossi.

The prisoners legislated a statute and remained autonomous until January 1861, when a Navy contingent recovered the island.

The island has had several names, such as Partenope, Palmosa, Dommo Stephane and Borca since Roman times.