It has the quadrangular plan characteristic of the Visconti castles of the Lombard Plain but lacks the typical corner towers.

He also added a wide mullioned window near the western corner, as attested by its central marble column, bearing the initials FM, which stands for Filippo Maria.

[4] In 1450, Duke Francesco I Sforza entrusted the Bereaguardo possessions to his son-in-law Giovanni Maruzzi da Tolentino.

After a few ownership changes, the building came to the engineer Giulio Pisa, who, at the end of the 19th century, donated it to the town of Bereguardo.

[6] The most notable change over the centuries was the demolition of the porticoed wing that closed the courtyard to the west.