The Arab raid against Rome took place in 846. Muslim raiders plundered the outskirts of the city of Rome, sacking the basilicas of Old St Peter's and St Paul's-Outside-the-Walls, but were prevented from entering the city itself by the Aurelian Walls.
Old St Peter's, 19th-century reconstruction
Old St. Peter's Basilica was the church buildings that stood, from the 4th to 16th centuries, where St. Peter's Basilica stands today in Vatican City. Construction of the basilica, built over the historical site of the Circus of Nero, began during the reign of Roman Emperor Constantine I. The name "old St. Peter's Basilica" has been used since the construction of the current basilica to distinguish the two buildings.
19th-century drawing of St. Peter's Basilica as it is thought to have looked around 1450. The Vatican obelisk is on the left, still standing on the spot where it was erected on the orders of the Emperor Caligula in 37 AD.
Fresco showing cutaway view of Constantine's St. Peter's Basilica as it looked in the 4th century
Maarten van Heemskerck – Santa Maria della Febbre, Vatican obelisk, Saint Peter's Basilica in construction (1532)
Fontana della Pigna (1st century AD), which stood in the courtyard of the Old St. Peter's Basilica during the Middle Ages and then moved again, in 1608, to a vast niche in the wall of the Vatican facing the Cortile della Pigna, located in Vatican City, in Rome, Italy
