 In ancient times, the site was inhabited by prehistoric settlements, followed by a Roman colonization of consul Marco Fulvio Flacco (2nd century), contemporary of Celtic-ligurian tribes named "Iadatine", from the Latin "Iactum", the ancient name of the Grana creek.Since 3rd century A.D. they are documented rules of patrician praedials named "Medialianus", but also "Condius", "Contius", accordingly the origin of toponym "Contiacus", "Conziacanus", "Conzianus".A true urban village begins about the 5th century, at the bottom of the hill.