Claternae

Like many other evenly spaced settlements on the Via Emilia, each at a day's march for the legionaries, it probably arose as a stopping place for travellers between the major towns.

The beginning of Roman colonization of Gallia Cisalpina and the building of the Via Emilia perhaps along a pre-existing trail,[1] Claternae was founded at the junction between the Via Emilia and another road, perhaps the Via Flaminia Minor, which crossed the Apennines to provide a link with Arezzo.

[2] Lanzoni argues that, like other towns in the region which were of no greater importance, Claternae was the seat of a diocese, to which he attributes a bishop named Constantius, whom Saint Ambrose, as metropolitan archbishop, directed to make frequent visits to the nearby diocese of Forum Cornelii, which was then without a bishop.

[3] No longer a residential bishopric, Claternae is today listed by the Catholic Church as a titular see.

[4] The remains of Claternae lie within the comune of Ozzano dell'Emilia at the hamlet of Maggio and close to the Quaderna stream, which gave the name to the town.