Orthodox Saints of the Pre-Schism See of Rome
6th May
BENEDICTA of ROME, a mid-sixth century nun at a monastery founded by her close friend St. Galla (5th October) in Rome. St. Gregory the Dialogist (3rd September) relates that St. Peter the Apostle (29th June) appeared to St. Benedicta in a vision and prophesied her repose.
EADBERHT (EADBERT, EDBERT) of LINDISFARNE, a monk at Lindisfarne and successor of St. Cuthbert (20th March) as Bishop. St. Eadberht had a remarkable knowledge of the Holy Scripture and was renowned for his charity to the poor. He reposed 698, and, at his direction, was buried under the incorrupt remains of St. Cuthbert.
JUSTUS of VIENNE, the fifth Bishop of Vienne (south-eastern France), he reposed circa 168, and was succeeded by St. Dionysius of Vienne (8th May).
HELIODORUS, VENUSTUS, and COMPANIONS, (Third Century), a group of over seventy martyred during the Diocletianic Persecution. Most sources say their martyrdom took place in North Africa. However, St. Ambrose of Milan (7th December) claims that all but a few were actually martyred in Milan.
PETRONAX, following the Lombard invasions and associated sack of the Abbey of Monte Cassino, St. Petronax with a handful of monks set about re-building the abbey. With St. Petronax serving as Abbot, the Abbey was soon attracting many monks as it again came to be known as centre of learning and holiness. St. Petronax’s disciples included SS. Willibald of Eichstätt (7th July) and Sturmi of Fulda (17th December). St. Petronax reposed circa 747.
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.