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This page is a list of Catholic bishops and archbishops of Ravenna and, from 1947 of the Archdiocese of Ravenna and Cervia, which in 1985 became styled the Archdiocese of Ravenna-Cervia.[1][2] The earlier bishops were frequently tied to the Exarchate of Ravenna.
St. John II ruled the See from 477 to 494. Here at last we get two certain dates from the inscription on his tomb, and the recovery of this name and these dates enables us to correct an omission of Agnellus and to understand the cause of the wild errors which he has committed in his chronology. For it is now clear that in his life of John the Angel-seer he has run two bishops into one, and has calmly blended transactions reaching over a period of some sixty or seventy years, the death of Honorius, the invasion of Attila, the war between Odovacar and Theodoric, in his life of a bishop who according to his own account ruled his See for 16 years, 10 months, and 18 days.
It was this John II who negotiated the peace, the short-lived peace between Odovacar and Theodoric which terminated the long siege of Ravenna (493).
— Hodgkin (1892). Italy and Her Invaders. p. 911
Among the bishops ... mention should be made of Joannes Angeloptes (430-33), so called because he had the gift of seeing his guardian angel .... In Herbermann, Charles (ed.).
On 24 February 861 Nicholas I excommunicated and deposed one of Italy's most powerful prelates, John VIII, archbishop of Ravenna.