In Gallo-Roman religion, Epona was a protector of horses, ponies, donkeys, and mules. She was particularly a goddess of fertility, as shown by her attributes of a patera, cornucopia, ears of grain, and the presence of foals in some sculptures.
The worship of Epona, "the sole Celtic divinity ultimately worshipped in Rome itself", as the patroness of cavalry, was widespread in the Roman Empire between the first and third centuries AD.