The Venosa Castle is a historic fortified building located in the homonymous town in the province of Potenza. Commonly referred to as the Aragonese Castle because it was built by Duke Pirro del Balzo during the Aragonese dynasty period, it is situated at the southern end of the plateau occupied by the urban area of the city.
Its construction dates back to 1470, commissioned by Duke Pirro del Balzo as part of a broader fortification project. It is an imposing structure, with a square plan featuring four cylindrical towers. The Del Balzo coat of arms, a radiant sun, is visible on the western tower. The construction of the castle and the excavation of the moat, in accordance with the new principles of fortification, led to the demolition of the Romanesque cathedral and the surrounding district. Therefore, a new cathedral was built in an expansion of the settlement on the lower part of the plateau where the city stands.
It was transformed from a fortress into a noble residence by Carlo and Emanuele Gesualdo, with the addition of the inner loggia, the northwest wing, and the outworks at the base of the towers. From 1612, it hosted the Academy of the Renaissance.
The four cylindrical towers at the corners, initially crowned with battlements and probably conical roofs, are supported by outworks that constitute the scarp of the moat, used as prisons. The entire building, accessed via a drawbridge, is surrounded by a deep moat. Inside, there is a large courtyard surrounded by a Renaissance loggia. In front of the castle, there is a porticoed square and a monumental fountain granted to Venosa by Charles I of Anjou.
Within its walls, in the rooms located in the basements of the towers, the castle houses the National Museum of Venosa, which primarily preserves the rich evidence of the Roman colony of Venusia.
References:Ehrenbreitstein Fortress was built as the backbone of the regional fortification system, Festung Koblenz, by Prussia between 1817 and 1832 and guarded the middle Rhine region, an area that had been invaded by French troops repeatedly before. The fortress was never attacked.
Early fortifications at the site can be dated back to about 1000 BC. At about AD 1000 Ehrenbert erected a castle. The Archbishops of Trier expanded it with a supporting castle Burg Helferstein and guarded the Holy Tunic in it from 1657 to 1794. Successive Archbishops used the castle's strategic importance to barter between contending powers; thus in 1672 at the outset of war between France and Germany the Archbishop refused requests both from the envoys of Louis XIV and from Brandenburg's Ambassador, Christoph Caspar von Blumenthal, to permit the passage of troops across the Rhine.