Saint Paternian was a 4th-century bishop of Fano, born in the region around 275 AD. Originally from Fermo, he sought refuge in the mountains near the Metauro River to avoid the persecutions led by Diocletian. During this time, he lived as a hermit and served as an abbot. Following the end of the persecutions, he was appointed to his see by Pope Sylvester I. He governed the city of Fano for many years until his death in 360 AD.