The Abbey of San Cassiano is a former Benedictine monastery, located on Monte Santa Croce, outside of the town of Narni in the Province of Terni, in the Region of Umbria in Italy.
Wikipedia https://en.wikipedia.org/wiki/Abbey_of_San_Cassiano,_Narni
Address 05035, Italy
Coordinates 42°31'26.646" N 12°30'30.072" E