Orthodox Saints of the Pre-Schism See of Rome
GUIER, (Date Unknown), A church, not far from Padstow in Cornwall was named for this hermit priest, of whose life we have no further details. Some sources posit that Guier is merely a spelling variation of Gwerir and the St. Guier is the same saint as St. Gwerir (vide infra).
GWERIR of LISKEARD, (Date Uncertain), An anchorite near Liskeard in Cornwall, England at whose grave site King Alfred the Great (r. 871–899) was cured of a serious illness. Following St. Gwerir’s repose, St. Neot (31st July) occupied his cell.
HILDEBERT of GHENT, Abbot of St. Peter’s Abbey (Sint-Pietersabdij) in Ghent in Flanders. St. Hildebert was martyred in 752, by Iconoclasts for his defence of icons.
ISIDORE of SEVILLE, the brother of SS. Leander (27th February), Fulgentius (16th January), and Florentina (20th June). After succeeding St. Leander as Bishop of Seville in 600, he presided over several Councils, reorganised the Spanish Church, encouraged monastic life, and completed the Mozarabic Rite. St. Isidore was a prolific writer with many of his books still extent. In 619, St. Isadore convoked the Second Council of Seville, and in 633 the Fourth Council of Toledo. St. Isidore reposed in 636.
TIGERNACH (TIGERNAKE, TIERNEY, TIERRY) of CLOGHER, Successor of St. Macartin (24th March) as Bishop of Clogher and Abbot of Clones, he is the patron saint of Clones, Co. Monaghan, Ulster. While the details of his life are vague at best, it seems he had been a disciple of St. Ninian (26th August) prior to being elevated to Bishop. It is said he lost his vision in his later years and thenceforth devoted his life in prayer and contemplation. St. Tigernach reposed in 549.
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.