Castello di Argine, Medieval castle in Bressana Bottarone, Italy.

Castello di Argine is a brick fortress on the edge of Bressana Bottarone, near the Coppa stream. It has a square plan with a central courtyard, corner towers (perhaps four originally), and a surrounding moat. A large square tower rises above the main body, with a smaller tower on the south front and an unfinished, windowless tower stub on the north. The drawbridge has been replaced by a fixed masonry bridge, and 18th-century alterations are visible on the perimeter walls.

The structure was built during the 14th and 15th centuries as part of the Casteggio feudal holdings under Angelo Simonetta. Control later passed to the Visconti di Modrone family, who held the property through subsequent centuries.

The castle displays typical architectural features of the Po Valley region, including decorative toothed friezes on its towers and walls that remain visible today. These elements reflect the local building traditions that characterize the area.

The original drawbridge has been replaced with a fixed masonry bridge, making access straightforward for visitors today. The spaces between the battlements were adapted into additional rooms, creating a different experience than in its defensive past.

The north side has a windowless, battlement-free tower stub, never finished. The other towers and facades carry a dentil frieze, and the perimeter walls still show the marks of 18th-century rebuilding, when the spaces between the battlements were closed to recover the upper floor.