Matterella Fortress

Matterella Fortress , "Mater-Illa",  built in the 8th century by the Lombards as a defensive system of the St. Peter in Valley abbey, was completely rebuilt between the 11th and 13th centuries, becoming a true and proper castle. 
In the 16th century, by the will of the Cybo family, it was probably enlarged by Antonio da Sangallo, with two circular bastions as a weapon defence system, becoming the seat of the Governor and prison of the Duchy. 
The fortress has three floors and an underground area used as a prison. The Matterella Fortress can be reached via a short path amongst olives and stone walls.