Orthodox Saints of the Pre-Schism See of Rome
CLARENTIUS, a seventh century Bishop of Vienna (Austria). No further information is extant.
EXUERANTIA, nothing is known about this nun who is venerated in Troyes (north-central France), and is believed to have reposed circa 380.
LUCIDIUS, a fourth century Bishop of Verona in the Veneto region of Italy. Nothing else is known of his life.
MARCELLINUS, consecrated the twenty-ninth Pope of Rome in June 296. St. Marcellinus was martyred in 304 during the Diocletianic Persecution.
PETER of BRAGA, (Date Unknown), believed to have been the first Bishop of Braga in Portugal and a martyr.
RICHARIUS (RIQUIER, RICARIO) of CELLES, a young pagan man who hid Irish missionaries, SS. Caidoc and Fricor (1st April) from local pagans. Whilst in hiding the missionaries converted St. Richarius, who became a priest. He travelled on donkey throughout France evangelising, and worked in England for a several years. When he returned to France he founded, and served as first Abbot of a monastery at Centula (later known as St. Riquier Abbey / abbaye de Saint-Riquier), in present-day Saint-Riquier, near Amiens in northern France. St. Richarius was known for his charity and his work ransoming captives. In his final years, he retired to live as a hermit. St. Richarius reposed circa 645.
TRUDPERT of MÜNSTERTAL, following a pilgrimage to Rome, St. Trudpert, who may have been originally from Ireland, settled as a hermit in Münstethal in the southern Black Forest, in present-day Germany. He was killed by day labourers, in the pay of a local nobleman, circa 644.
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.