He suffered torments and a cruel death in the persecution of Dioclesian at Formiæ, in the year 303. Saint Gregory the Great testifies that his body remained in that city in the sixth age. Formiae being destroyed by the Saracens in the ninth century, the sacred treasure was translated with the episcopal see to Cajeta, in 842. This saint is corruptly called Saint Elmo for Ermo, the abbreviation for Erasmus; and he was usually invocated by sailors in the Mediterranean. Saint Erasmus is commemorated in the new Paris Breviary, and a portion of his relics is possessed by a nunnery near Gournay, in that diocess, much frequented by pilgrims.
- Father Alban Butler. “Saint Erasmus, Bishop and Martyr”. , 1866. CatholicSaints.Info. 24 May 2016. Web. 25 March 2017. <>