|San Pietro in Borgo|
|English name:||St Peter in the Borough|
San Pietro in Borgo is a small mediaval church by the south-east corner of Vatican City, just west of the Piazza Sant'Uffizio. Its semi-circular apse can be seen from there. Despite appearances, it is in Italy not the Vatican City although this area is extra-territorial. Picture of the church at Wikimedia Commons. 
The first documentary reference is in 1053, when it was known as San Salvatore in Torrione after the towers of the adjacent Porta Cavallegeri. It was restored about 1450, but subsequently abandoned as a church. The east end was demolished for the Palazzo di Sant’Uffizio, and the rest had to wait until 1923 for re-consecration. There are restored fifteenth-century frescoes, and a sixteenth-century depiction of the Madonna and Child.
At present it is being used by the Missionaries of Charity of Blessed Teresa of Calcutta, who have a convent adjacent.