Porta San Paolo

The original name of the gate was Porta Ostiensis, because it was located at the beginning of via Ostiense, the road that connected Rome and Ostia. Via Ostiense was an important arterial road, as evidenced by the fact that upon entering the gate of the same name, the road split, with one direction leading to the famous Emporium, the great market of Rome.

The gatehouse is flanked by two cylindrical towers, and has two entrances, which had been covered by a second, single-opening gate, built in front of the first by the Byzantine general Belisarius (530s–540s).

The structure is due to Maxentius, in the 4th century, but the two towers were heightened by Honorius. Its original—Latin—name was Porta Ostiensis, since it opened on the way to Ostia. Later, it was renamed to the Italian Porta San Paolo, because it was the exit of Rome that led to the Basilica of St. Paul Outside the Walls.

In 549, Rome was under siege; the Ostrogoths of Totila entered through this gate, because of the treason of the Isaurian garrison.

On 10 September 1943, two days after the armistice between the Allies and Italy had been agreed, Italian military and civil forces tried to block German seizure of the city, with 570 casualties.

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  Giuseppe Vasi etching of Porta San Paolo and Pyramid of Cestius, in the 18th century.
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  The gate has been separated from the Aurelian Walls, and looks like a castle, with the two towers and the double entrance. It is, therefore, sometimes called "Castelletto".

• Porta San Giovanni – Gate of the Aurelian walls, a landmark of Rome, Italy

• Quercioli, Mauro (2005). Le mura e le porte di Roma. Rome: Newton & Compton.
• Cozzi, Laura G. (1968). Le porte di Roma. Rome: F. Spinosi.

• Further information (in Italian)
• Lucentini, M. (31 December 2012). The Rome Guide: Step by Step through History's Greatest City. Interlink. ISBN 9781623710088.

Media related to Porta San Paolo (Rome) at Wikimedia Commons