Церковь Санта Мария дель Приорато
Church of Santa Maria del Priorato, or Virgin of the Priory
Priory church dedicated to the Blessed Virgin.
The church belongs to the Priory of the Knights of Malta.
It was designed by Giovanni Battista Piranesi at the end of the 18th century; construction started in 1765 on the site of an older church owned by the Priory.
The first church was built in 939, when Alberic II gave his palace to St Odo of Cluny.

The keyhole of the Priory, at 3 Piazza dei Cavalieri di Malta, is famous - look through it, and you'll see that St Peter's is perfectly framed. The keyhole was deliberately placed here, as part of Piranesi's excellent design.

The facade is in the Neo-Classical style.

Adjacent to the church is the Complesso dell'Ordino dei Cavalieri di Malta (Compund of the Order of Knights of Malta).
The tomb of monsignor Bartolomeo Carafa (died 1405) was made in the 15th century by Paolo Romano. Very few works by this Roman sculptor have been preserved. Two other tombs in the church are made from reused Roman sarcophagi.
The church is not open to the public.
It is possible to apply for permission to enter, but it is not easy to get in.
The only part you can see is the keyhole, and it's possible to look into the complex from the atrium of Sant' Anselmo.
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