Castello di Canneto sull'Oglio, Medieval castle in Canneto sull'Oglio, Italy.

Castello di Canneto sull'Oglio, also called castello di San Genesio after the small church around which it rose, is an 11th-century fortress on Piazza Matteotti in the historic centre of Canneto sull'Oglio. It stood in the town's wall circuit guarding the Oglio river. Of the structure repeatedly destroyed and rebuilt, only the tower remains intact after the Austrians demolished it in the 18th century.

The fortress came under the control of Bishop Landolfo of Cremona in the year 1000 and became an important element in regional power dynamics. It remained strategically significant throughout the medieval period and beyond.

The castle is also called castello di San Genesio, after the small church around which the stronghold arose. In 1543 Emperor Charles V stayed here with Ferrante Gonzaga, Cardinal Ercole Gonzaga and Margherita Paleologa, and on that occasion crowned the Mantuan poet Giampietro Penci.

The best way to visit is on foot through the historic town center, where the exterior walls and tower are clearly visible. Plan your walk during daylight hours to get a good view of the building's details.

The castle is also called Castello di San Genesio, after the small church around which the stronghold arose. Of the whole complex, only the tower remained intact after the Austrians had the structure completely demolished in the 18th century.