Via Aemilia
His legend states that Domninus was Chamberlain to Emperor Maximian and keeper of the royal crown, and converted to Christianity, thereby incurring the emperor's wrath. Pursued by imperial forces, he rode through Piacenza holding a cross. He was caught and beheaded on the banks of the Stirone, outside of Fidenza, or the Via Aemilia. It is recounted that Domninus picked up his severed head and placed it on the future site of the cathedral of San Donnino.