Known as Castelasc in Lombard local language, the Castle of Cuasso is one of the most important defensive buildings in the province of Varese and Insubria. Founded in medieval times, it stands upon a hill which gives name to the whole city of Cuasso al Monte. Nowadays only ruins remain of the ancient structure.
Due to the lack of written sources, the history of the castle is still, in some respects, mysterious. The few studies and on-site digs have found out that it was built close to an ancient road that connected Milan to the alpine passages of San Bernardino Pass and Gotthard Pass. Its building on top of a gorge made the fortress impossible to seize. Its closeness to the river Cavallizza, which flows through an area rich in silver, lead and gold, could also suggest that it played a preeminent role in controlling the managing of the mineral wealth of the region.
The castle was built in many different stages. The most ancient tower, which dates back to Roman times, was enlarged during the Lombard age. Some believe that it was built by a Saxon workforce. Paul the Deacon, in his book Historia Langobardorum, records about 20,000 Saxons, who followed king Alboin in spring 568. The Saxons descended from the same ancestors, as both people had lived in Roman Germany during the first century A.D, in the area around the river Elbe. In 734 a part of 20,000 Arimannia left Italy, as they strongly disagreed with the Lombards' power. So, the Castle was surely a military defense of the road that connected Como and the Gotthard: in fact, before the bridge of Melide was built, the main road ran through it.
Later it was part of the Seprio's County, and it was permanently abandoned in the 13th century. Until the mid 16th century the castle of Cuasso housed the local parish; then, during the following centuries, it was used as a cemetery. Finally, the castle was brought back to its function of observation tower when the Cadorna Line was built.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.