Palazzo Gonzaga di Vescovato stands in the village of Portiolo near San Benedetto Po. Privately owned, it was built at various times between the 15C and 17C. This is the earliest example of a villa-castle built by the Gonzagas. It later became a hunting estate of the cadet branch of the Gonzaga di Vescovato family and finally a noble residence. It was inhabited until the 1960s.