Orthodox Saints of the Pre-Schism See of Rome
BEREGISUS, a priest and confessor of Duke and Prince of the Franks and Mayor of the Palace, Pepin of Herstal (†714). Pepin assisted St. Beregisus in founding the Abbey of St. Peter in the Ardennes (Abbaye de Saint-Pierre en Ardennes), in Andage later known as the Abbey of Saint-Hubert, in present-day Saint-Hubert, southern Belgium. Where he may have served as the first Abbot. St. Beregisus reposed circa 725.
LEODEGARIUS (LEGER) of AUTUN, a son of St. Sigrada (8th August) and brother of St. Gerinus (25th August). Shortly after being ordained to the priesthood, St. Leodegarius received monastic tonsure at the Abbey of St Maxentius (abbaye de Saint-Maixent) near Poitiers (west-central France), and was soon made Abbot. Elevated circa 663 to the Episcopacy as Bishop of Autun, St. Leodegarius worked on reforming his diocese and led the first Council of Autun (circa 670). His opposition to the tyrannical Mayor of the Palace of Neustria, Ebroin's (†680/1) struggles for control over succession in the Merovingian dynasty, led Ebroin in 678 to arrest St. Leodegarius, have him subjected to severe torture, and finally murdered.
LEUDOMER (LOMER), a Bishop of Chartres (north-central France) who reposed circa 585, no further information on this saint is extant.
URSICINUS II seventeenth Bishop of Chur, in present-day eastern Switzerland, from 754 until his repose in 760.
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.