Their story
Marcellus and Apuleius are famous in the ancient martyrologies and have a mass in Pope Gelasius's Sacramentary (a book of prayers for Mass).
In 872 the emperor Lewis II received their relics from the pope, and his wife Angilberga gave them to the nunnery she founded at Placentia, where they are especially honoured. Butler gives no date of martyrdom; the text on this page gives the first century.

