Orthodox Saints of the Pre-Schism See of Rome
AGERICUS (AGUY, AIRY), a spiritual child of St. Eligius of Noyon (1st December), and later Abbot of Marmoutier Abbey (abbaye de Marmoutier) just outside of Tours (Indre-et-Loire, France). St. Agericus reposed circa 680.
DOMNIO and COMPANIONS, (Date Uncertain), according to tradition, St. Domnio was one of the Seventy, and accompanied St. Peter (29th June) to Rome. From Rome he was dispatched to enlighten Dalmatia and serve as the first Bishop of Salona (present-day Solin, Dalmatia, Croatia); where St. Domnio is said to have been martyred. However, there are sources which claim St. Domnio was martyred during the Diocletianic Persecution (early fourth century), which was well over two centuries after St. Peter (29th June) arrived in Rome
GODEBERTHA, she received monastic tonsure from St. Eligius (1st December) at Noyon (about 100 km / 60 mi north of Paris). She later was the Founding-Abbess of a convent at Noyon. It is recorded in an early Vita that once when Noyon was was threatened with total destruction by fire, St. Godebertha made the sign of the cross over the flames, and the inferno was forthwith extinguished. St. Godebertha reposed circa 700.
GUTHLAC, (Eighth Century), a prince of the house of Mercia and a noteworthy warrior, St. Guthlac renounced the world and received monastic tonsure at Repton Abbey in Derbyshire, England. He went on to spend the last fifteen to twenty years of his life as a hermit in the fens in Lincolnshire with growing renown for his sanctity and asceticism. St. Guthlac reposed 714. Later in the eighth century a monastic community formed and built Crowland Abbey over his tomb. The British Library possesses (Harley Roll Y.6) a vellum roll consisting of 17½ drawings depicting the life of St. Guthlac, known as the Guthlac Roll.
ISAAC, a monk in Syria who fled persecution by the Monophysites. St. Issac settled in Monteluco near Spoleto in Umbria where he founded a monastery, from which he played an important role in the restoration of eremitical life to sixth century Italy. St. Isaac reposed circa 550.
MACHAI, (Fifth Century), a disciple of St. Patrick (17th March), St. Machai founded a monastery on the Isle of Bute in the Firth of Clyde on the west coast of Scotland.
MAEDHOG (AEDHAN, MOGUE), (Sixth Century), known for working many miracles during his life, St. Maedhog was an Abbot of Clonmore, in Co. Carlow, Ireland. A close ally of SS. Onchu (8th February) and Finan (7th April), he worked with them to promote peace amongst the Irish chieftains of the time.
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.