Orthodox Saints of the Pre-Schism See of Rome
BAUDACARIUS, a monk at Bobbio Abbey where he oversaw the Abbey’s vineyard. St. Baudacarius reposed in 650.
BERNWALD (BEORNWALD), a priest in Bampton, Oxfordshire, England, and most likely founder of the Bampton Minster. He is variously described as ‘confessor’ and ‘Hieromartyr’, though most likely erroneously. It is believed he flourished at some point in the eighth century.
HONORATUS of TOULOUSE, (Third Century), second Bishop of Toulouse.
JOHN and FESTUS, (Date Unknown), martyrs in Tuscany, of whom no further information is extant.
JOHN VINCENT, a native of Ravenna who received monastic tonsure at Saint Michael's Abbey, which overlooks the village of Chiusa di San Michele in the Piedmont. Later he was a hermit on Monte Caprario in present-day Rocchetta e Croce in Campania. Although St. John Vincent is generally listed as having been a bishop in martyrologies, no See is ever identified. St. John Vincent reposed in 1012.
SEVERINUS, a Bishop of Trier, who is said to have reposed circa 300, though there are no details of his life extant.
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”.
Details of British Saints excerpted from Orthodox Saints of the British Isles.
Details of continental saints from these sources.
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.