This is a place of Roman foundation. In the Middle Ages it is mentioned in documents as Otoè. Altoè was then one of the districts granted by the Bishop Sigifredo to the church of Sant`Antonino in the 10th century. Later a castle was built to defend the territory. Altoè was a fief of the Salimbene, of Niccolò Piccinino, of the Gonzaga and, at the end, of the Anguissola. Today Altoè is a modern village in the open country, not far from Podenzano. The most important building is, as always, the Castle, which is not open to visitors, being private property. Next to the castle is the parish church of San Martino.