Grottaferrata

Etymology
From the name of the 11th-century Italo-Greek monastery ,, a compound of + , from the double iron bars over the windows of an early oratorio at the site, formerly a Roman tomb.

Proper noun

 * , near the site of ancient Tusculum
 * 1) the nearby abbey, once famed for frescos by Domenichino and for its Renaissance fortifications
 * 2)  the monastic order of the abbey, which long preserved certain Greek Orthodox rites