Buildings at the site of Somma Lombardo Castle date from the 9th century and the fortress from the 13th century. In 1448, the brothers Francesco and Guido Visconti, took refuge in this town and castle from the forces of the Ambrosian Republic. They divided the landholdings and portions of the castle. The fortress has been amalgamated from adjacent residences, all once surrounded by a single moat. From the brother Francesco, who owned the newer portion of the castle, descend the Visconti di San Vito; while from Guido, who owned the lower and older portions of the castle, descend the Visconti di Modrone.
The San Vito castle contains frescoes attributed to the school of Camillo Procaccini and an altarpiece by Cerano. The castle also has an extensive collection of barber plates.
Parts of the castle are used for private events and open for guided tours.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.