Orthodox Saints of the Pre-Schism See of Rome
DEODATUS (DIÉ, DIDIER, DIEU-DONNÉ, ADÉODAT) of NEVERS, a Bishop of Nevers in present-day France, and founder of a monastery at Ebersheim Münster near Strasbourg (eastern France). St. Deodatus resigned his See to live as an anchorite in the Vosges Mountains (eastern France). A community formed around him, and he then founded and served as Abbot of the monastery of Val-de-Galilée - Jointures. St. Deodatus reposed circa 680, the town which had grown around his monastery is called St. Dié in his honour.
GAUDENTIUS, CULMATIUS, and COMPANIONS of AREZZO, martyred in 364 at Arezzo in Tuscany (central Italy) during the reign of Emperor Valentinian I (r. 364–375). St. Gaudentius, was a bishop, and St. Culmatius, his deacon, along with them were some fifty-three fellow Christians whose names are no longer known.
GERVASE and PROTASE, Protomartyrs of Milan, (Second Century), twin brothers and the sons of SS. Valeria and Vitalis of Milan (28th April). St. Ambrose of Milan (7th December) was in 386 guided by a vision to their grave, and though there no longer is anything remembered about them, other than they were early martyrs, St. Ambrose called them the 'Protomartyrs of Milan'.
HILDEGRIN of CHÂLONS-SUR-MARNE, a younger brother of St. Ludger of Utrecht (26th March), and fellow-worker with St. Ludger in enlightening the Saxons. St. Hildegrin was consecrated Bishop of Châlons-sur-Marne (present-day Châlons-en-Champagne in eastern France) circa 802–804, serving until 810 when he resigned to succeed his brother as Abbot of Werden Abbey (Kloster Werden) in present-day Essen, Germany. St. Hildegrin reposed circa 827.
INNOCENT of LE MANS, a Bishop of Le Mans (north-western France) for over four decades, St. Innocent was held in high esteem by his flock, and greatly venerated following his repose in 559.
ROMUALD of RAVENNA, an Italian nobleman, St. Romuald once acted as second for his father in a duel in which his father killed his opponent. Seeking to repent for his actions, St. Romuald received monastic tonsure at a monastery in Classe, just outside of Ravenna (northern Italy), and served as its Abbot from 996 until resigning in 999. Following his resignation St. Romuald devoted the next fourteen years to building several hermitages and monasteries around central and northern Italy, the best known one being in Camaldoli near Arezzo, in Tuscany (central Italy). He then retired to live as hermit for the rest of his years, reposing in 1027.
ZOSIMUS of UMBRIA, martyred by beheading in 110 in Umbria (central Italy), during Emperor Trajan’s (r. 98–117) persecution of Christians.
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.