the name Cale, or Callium 39 km north of Helvillum (now Sigillo) and 29 km southwest of Forum Sempronii (now Fossombrone).

In the 6th century it was one of the strongholds of the Byzantine Pentapolis. A free commune was founded in Cagli at the end of the 12th century, and it quickly subdued more than 52 surrounding castles, overthrowing the