The castle of Cerreto or Cereio, located between the Riglio and Chero rivers, is documented as belonging to Oberto Landi in 1385. Subsequently, during the battle of the Guelphs of Piacenza against the Dukes of Milan, the chronicler Musso of Piacenza confirmed the loyalty of the fortress of Cerreto in favor of the Visconti.
The castle of Cerreto Landi has a rectangular plan with three projecting corner towers. In the keep, in the center of the main facade, there are two entrances, one for pedestrians and one for the ramp, once served by the drawbridge from which the seats of the bolzoni have been preserved. The grandeur of the south-east entrance and the presence of moats, together with the traces of an ancient isolated tower in the center of the courtyard, confirm the control function that Cerreto exercised over the communications network that connected the Piacenza Hill to the Via Emilia.
In the stone and pebble walls, a classic structure of thirteenth-century buildings in Piacenza, there are more modern brick inserts, openings and verandas with round arches and some loopholes in the north-west tower.