The name of the Abbey of San Mercuriale comes from the name of the first bishop of Forlì (4th century), who was called Mercuriale. This saint was always depicted with a dragon at his feet, because of a legend that said that after the unsuccessful attempts of many knights to kill a terrible dragon, he managed to tame it and (after imprisoning it in his pastoral stole) to throw it into a well from which it never returned.