Biography
Marolus
About Marolus
The Italian Episcopal Conference's Roman Martyrology remembers Marolus as a bishop at Milan and says he was a friend of Pope Innocent I. This short notice securely identifies his office and Milan association, but it does not give a continuous account of his life. The Roman Catholic calendar includes him on April 23; that liturgical observance is not evidence that he died on that date.
Ennodius wrote a short verse titled De venerabilis Maroli successione. Its imagery evokes the Tigris and Syria and praises Marolus's discipline. The poem is literary praise, not a dated record or a full biography. Its language does not establish an exact birthplace, migration route, or chronology, so those details are not supplied here.
The sources reviewed for this profile establish no reliable birth or death date or place, episcopal tenure, martyrdom, church foundation, or relic translation. Marolus is therefore presented only through the brief official notice and the limited literary evidence, without later stories being added as facts.
Wondering how to weigh the stories and sources? Learn how to read a saint biography.