The Visconti Castle of Abbiategrasso lies on the axis of the Naviglio Grande canal and it was built to protect the waterway to Milan. In the 15th century it was one of the preferred places of residence of the dukes and duchesses of Milan.
The castle was probably built at the end of the 13th century on the site of a previous fortification (castro Margazario) near a Benedictine monastery. It was enlarged by Azzone Visconti (1329-1339) and Gian Galeazzo (1378-1402). In 1438 it was restored and embellished by the Duke Filippo Maria and – lost every defensive function and easily reachable by water along the Naviglio Grande – it became his favorite country mansion.
To the castle had some inclination the duchesses of Milan. Here had a stable residence Agnese del Maino, mistress of the Duke Filippo Maria and mother of Bianca Maria. The Sforza, dukes of Milan and descendants of Bianca Maria, favored the castle of Abbiategrasso to enhance their Visconti origins.
After the Visconti-Sforza period, the castle progressively assumed again the role of a stronghold, especially during the years of the Italian Wars (1494-1559). In 1658 three towers were demolished and the fourth was cut off. In 1862 it was sold to the municipality, which in the following years obliterated the ramparts to make place to the new train station, at the same time taking care of some restorations.
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Kakesbeck is one of the largest medieval fortifications in Münsterland and the oldest castle in Lüdinghausen. The imposingly grown complex originated in 1120 as a motte, a small hilltop tower castle. After numerous changes of ownership, the castle was extended onto two islands, but it was not until the 14th century that it underwent significant alterations and extensions under the von Oer family. The estate experienced its heyday in the middle of the 18th century, when it covered an area of almost one square kilometre and consisted of five further outer castles in addition to the core castle, which were secured by ramparts and moats.
The well-maintained condition of the castle today is thanks to the late Wilfried Grewing, the former lord of the castle. The foundation named after him has been particularly committed to preserving the property since 2020.