(for which it provided amphorae for wine transport), as well as its own agricultural production.

It started to decay in the 3rd century AD, and, as in the High Middle Ages the area became marshy, its agricultural output fell drastically. In this period it was part of the Byzantine Exarchate of Ravenna and had its first Catholic bishop in the 5th century; over his sepulchre, outside the town, a Benedictine monastery