Amphibalus is a venerated early Christian priest said to have converted Saint Alban to Christianity. He occupied a place in British hagiography almost as revered as Alban himself. According to many hagiographical accounts, including those of Gildas, Bede, Geoffrey of Monmouth, and Matthew of Paris, Amphibalus was a Roman Christian fleeing religious persecution under Emperor Diocletian. Amphibalus was offered shelter by Alban in the Roman city of Verulamium, in modern-day England. Alban was so impressed with the priest's faith and teaching that he began to emulate him in worship, and eventually became a Christian himself. When Roman soldiers came to seize Amphibalus, Alban put on Amphibalus' robes and was punished in his place. According to Matthew Paris, after Alban's martyrdom, the Romans