Castles around Cantalupo Ligure provide a historical perspective within the Val Borbera, a region characterized by its natural landscape and strategic historical importance. The area features a mix of medieval fortifications and noble residences, reflecting its past as a contested territory. These historical sites are often situated on rocky outcrops, offering views of the surrounding valleys. Cantalupo Ligure itself is a small municipality, serving as a gateway to exploring these significant architectural landmarks.
Last updated: June 30, 2026
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In Torre degli Alberi, a small panoramic hamlet of the municipality of Colli Verdi in Oltrepò Pavese, the main church is the Chiesa del Santissimo Nome di Maria.
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Vargo has had a castle known since 1157, the year of the invasions of Barbarossa's troops, but this construction was actually built as a signal tower in the Lombard era and is part of the so-called line of castles documented by Pertica.
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The castle of Borgo Adorno was a fiefdom of the Genoese Spinola family until 1518, the year in which Tolomeo Spinola remained without legitimate children and appointed the children of his friend Agostino Adorno as his heirs.
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Vargo is a hamlet of the municipality of Stazzano (AL) at about 410 m above sea level. During the Middle Ages it was an imperial fiefdom under the Genoese families of Fieschi and then Doria. In 1797 it was annexed to the Ligurian Republic and after the fall of Napoleon it followed the fate of the province of Novi, becoming part of Piedmont in 1859 with the Rattazzi Decree. It was an independent municipality until 1928. Vargo has a castle known since 1157, the year of the invasions of the troops following Barbarossa, but this construction was actually born as a signal tower in the Lombard era and is part of the so-called line of castles. The town developed concentrically around the “castle”, rebuilt by the Fieschi family of Genoa, lords of Vargo since 1413: after the conspiracy against the said feudal lords, it was dismantled in 1442, and later passed to the Doria family in 1547. Next to what must have been the south-east walls, there is still an oratory dedicated to the Virgin of the Annunciation, while today the once fortified structure is partly used as a residence, and the very visible main tower, inside which are the living quarters of the last owner, has not been altered.
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An interesting route in the upper Curone Valley is the one that leads to the walled remains of the Brusamonica Castle, a small town about two kilometers from Caldirola. The castle, built on the crest of the mountains above Caldirola, dates back to the feudal era; although it has lost its ancient splendor over time, it still retains a certain charm, if only for its uncertain and mysterious origin. A legend tells that before the castle there was a convent in the same place, probably founded by the monastery of San Pietro in Ciel d'Oro of Pavia and destroyed during a night of battle and looting (perhaps by Saracen troops) in the 9th century. This, like any good legend, is not confirmed by historical documents, even if even today the inhabitants of Caldirola, referring to the town of Brusamonica, are accustomed to using the term "convent". Contradictions aside, this castle, with a slope that extended up to Val Borbera and now collapsed, represents an important and concrete historical monument that can today become a destination for pleasant walks.
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With the eMTB, it is difficult to reach the site of the remains of the Castle. The path is narrow, steep and in some places there are rocks that block pedaling. Better to go up from Mount Gropà with the eMTB.
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The Torre Ratti castle is located in the hamlet of Torre Ratti in the municipality of Borghetto di Borbera, in the lower part of the Borbera valley, in the province of Alessandria. The lower Borbera valley was part of the Duchy of Milan for centuries and was enfeoffed by the Rati-Opizzoni family from Tortona.
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In the late Middle Ages, the village was a fiefdom of the Genoese Spinola family until 1518, who built the castle in 1100. In 1518 Tolomeo Spinola was left without heirs and passed as an inheritance to his friend Agostino Adorno, of the Genoese Adorno family. In the 17th century the castle suffered serious damage following a landslide and shortly afterwards the current Botta Adorno castle and stately palace was built in its elegant style, still privately owned. The castle has an elegant Baroque style portal and a chapel dedicated to Saint Caterina Fieschi Adorno, great-granddaughter of Pope Innocent IV and wife of Giuliano Adorno, who lived between the 15th and 16th centuries.
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The region offers a diverse range of historical structures, from medieval ruins like Sorli Castle, which provides panoramic views, to well-preserved noble residences such as Adorno Castle and Village and Castello di Torre Ratti, which now house art collections and museums.
Yes, Castello di Borgo Adorno is noted for its accessibility, featuring an elevator and dedicated museum paths to accommodate people with disabilities.
Castello di Borgo Adorno houses the Casa Museo Clemen Parrocchetti, an art gallery showcasing contemporary art. Similarly, Castello di Torre Ratti features a beautiful and imaginative museum display, blending history with artistic exhibits.
Visiting hours vary by castle. Castello di Borgo Adorno is typically open on Saturdays from 10:00 to 18:00, with special openings in May, and often requires reservations. Visits to Castello di Torre Ratti are often by appointment or by dining at its restaurant, with some indications of openings from June to November on specific days. It's best to check ahead for current schedules.
Sorli Castle, a ruined castle dating back to the 12th century, is situated at 661 meters and offers extensive panoramic views of the plain stretching from Alessandria to Tortona, including the Scrivia and Borbera Valleys.
The area around Cantalupo Ligure offers various outdoor activities. You can find numerous gravel biking routes, such as the 'Vargo Castle and Tower loop', and MTB trails, including routes near Brusamonica Castle_Ruins. There are also running trails, like the 'Castello di Borgo Adorno loop'. For more details, explore the Gravel biking, MTB Trails, and Running Trails guides for Cantalupo Ligure.
Castello di Torre Ratti is categorized as family-friendly, offering a museum display that is described as imaginative and instructive, which can appeal to younger visitors.
While specific recommendations vary, spring and autumn generally offer pleasant weather for exploring historical sites and enjoying the panoramic views. Some castles, like Castello di Borgo Adorno, have special openings in May, and Castello di Torre Ratti might be open from June to November.
Yes, the castles have rich histories. Castello di Borgo Adorno dates back to 1176, while Castello di Torre Ratti has origins in the 11th century. Vargo Castle and Tower was originally a Lombard-era signal tower. Many castles reflect the region's past as a contested territory.
Yes, the remains of Brusamonica Castle_Ruins are located on a challenging trail in the upper Curone Valley. The path can be narrow, steep, and rocky, making it a more demanding hike.
The castles showcase a mix of architectural styles. Castello di Borgo Adorno, while medieval in origin, primarily reflects a 17th-century transformation into a noble residence with Baroque additions. Castello di Torre Ratti features late Renaissance and Baroque elements, including a large square tower added in 1629, and is surrounded by an Italian garden.
Yes, Castello di Borgo Adorno served as a field hospital and a partisan outpost during World War II (1943-1945), adding a layer of 20th-century history to its ancient past.


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