Santi Marco e Andrea a Nilo

A church at the site was initially built in the 6th century and dedicated to St Andrew the Apostle.

It has had diverse custodians over the centuries, from the representative of the Pope, to various monastic orders, including Byzantine monks who had fled the Eastern Roman Empire during the Iconoclastic Controversy.

By the 17th century, it had been ceded to the Contraternity degli Osti e dei Tavernari (Innkeepers), who dedicated the church also to their patron, St Mark the Evangelist.

The church has a sarcophagus that putatively held the remains of Santa Candida the elder.

The church suffered damage during the earthquake of November 23, 1980, and was rebuilt under the supervision of the architect Adriano De Rose.