Orthodox Saints of the Pre-Schism See of Rome
DABIUS (DAVIUS), (Date Uncertain), according to English Roman Catholic priest and renowned hagiographer Fr. Alban Butler (†1773) St. Dabius was an Irish priest who worked in Scotland, where there are several churches dedicated to him. It is possible he is the same saint as St. Movean of Inis-Coosery (vide infra), a disciple of St. Patrick of Ireland (17th March).
MENELEUS (MÉNÉLÉ, MAUVIER) of MENAT, a monk at Carméry in Auvergne (central France). St. Meneleus later restored the Abbey of Menat near present-day Clermont-Ferrand in central France. St. Meneleus reposed circa 720.
MOVEAN (BITEUS) of INIS-COOSERY, (Date Uncertain), a disciple of St. Patrick of Ireland (17th March) and Abbot of Inis-Coosery, Co. Down, Ireland. He later went to Scotland where he lived as a hermit in Perthshire. It is possible he is the same saint as St. Dabius (vide supra).
PANCHARIUS of BESANÇON, an early Bishop of Besançon (eastern France) who had to contend with a great deal of persecution by the Arian Emperor Constantius II (r. 337–361). St. Pancharius reposed circa 356.
WANDRILLE (WANDREGISILUS, VANDRILLE) of FONTENELLE, a courtier in the Merovingian Court of Dagobert I, King of Neustria and Burgundy (France) (r. 629–639), who, following a pilgrimage to Rome, left the world to live as a monk. After a period of time, during which he was ordained to the priesthood, St. Wandrille founded, and served as the first Abbot of, the Abbey of St. Peter / abbaye Saint-Pierre (later the Abbey of St. Wandrille / abbaye Saint-Wandrille) in Fontenelle, Normandy (northern France). St. Wandrille reposed in 668.
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.