This building of the eleventh century is a symbol of Aquino. In pure Romanesque-style Benedictine takes the forms of the church of Monte Cassino. It was built using much of the remains of Roman buildings material enough to be described as "The strangest jumble of antiquities." Fragments of large marbles, epigraphs, metopes (rectangular architectural element between triglyphs), cornices, tomb reliefs can be found. All these discoveries give the whole building an atmosphere of great charm.