Orthodox Saints of the Pre-Schism See of Rome
AMELBERGA, the first Abbess of Susteren in Limburg (present-day Netherlands) after it was rebuilt following its destruction by Vikings. St. Amelberga reposed circa 900, and her relics are enshrined in the Basilica of St. Amelberga (the abbey’s church).
CELSUS and CLEMENT, (Date Unknown), Roman martyrs of whom nothing beyond their names is known.
COLUMBANUS the YOUNGER, (Seventh Century), an Irish monk and member of the group which travelled with St. Columbanus (23rd November) to Britain, Burgundy, and Bobbio.
DEMETRIUS and HONORIUS, (Date Unknown), described in ancient Roman manuscripts as martyrs at Ostia at the mouth of the Tiber. No further information on either of them is extent.
DIGAIN, (Fifth Century), St. Digain was a son of Constantine a king of Cornwall, and possibly a brother of St. Erbin (13th January). According to tradition St. Digain was a confessor who founded the church, now named for him, at Llangernyw, Conwy County Borough in north Wales.
GELASIUS I, most likely the Roman born son of an African father, though he may have been born a Roman citizen in Africa (which would make him the last African-born Pope of Rome). St. Gelasius was the forty-ninth Pope of Rome serving from 492 until his repose in 496. The Acacian Schism occupied a great deal of time during his papacy, he supported Alexandria and Antioch against Constantinople’s encroachments, and is also credited with composing liturgical Prefaces and Orations for Sacramentaries.
HILARY, an abbot of San Vincenzo in Volturno from 1011 until his repose in 1045. St. Hilary is best known for restoring the abbey to its former illustriousness.
HONORIUS, EUTYCHIUS, and STEPHEN, Spanish martyrs under Diocletian (circa 300), who, though listed in several early martyrologies, nothing of their lives is extant.
MAURUS, the twelfth Bishop of Verona. Towards the end of his life St. Maurus resigned his See, spending the last years of his life as a hermit. St. Maurus reposed circa 600, and his relics are enshrined at Verona.
RUFUS of ROME, the disciple who is greeted by St. Paul (29th June) in Romans 16:13. Some early traditions consider him to be the son of Simon of Cyrene mentioned in Mark 15:21, and to have served as a bishop. St. Rufus reposed circa 90.
Prior to the Schism the Patriarchate of Rome was Orthodox, and fully in communion with the Orthodox Church. As Saint John of Shanghai and San Francisco +1966 said “The West was Orthodox for a thousand years, and her venerable Liturgy is far older than any of her heresies”.
In many cases there are several spelling versions of the names of saints from the British Isles. I use the Oxford Dictionary of National Biography version as the primary version with the more prevalent version in parenthesis e.g. Ceadda (Chad) of Lichfield.