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Saint Helen of Carnarvon (Elen Luyddog, Helen of Caernarfon), Princess, a late 4th-century founder of churches in Wales, and wife of Emperor Magnus Clemens Maximus (383-388)[15]
Saint Boethian of Pierrepont (near Laon), Irish, Benedictine monk, martyred in France (7th century)[21]
Saint Conall (Conald, Coel), of Inniskeel (Inniscoel, Innis-coel), County Donegal, Abbot of the island monastery of Inniskeel, where there is a holy well dedicated to him (7th century)[22]
Saint John of Parma, abbot of Saint John's at Parma from 973 to c. 982, then under Cluniac observance (c. 982)[20][note 7]
The notation Old Style or (OS) is sometimes used to indicate a date in the Julian Calendar (which is used by churches on the "Old Calendar"). The notation New Style or (NS), indicates a date in the Revised Julian calendar (which is used by churches on the "New Calendar").
Melchisedek was a contemporary of our forefather Abraham. According to the words of the Apostle Paul he was a king, priest and proto-type of the Lord Jesus Christ (Hebrews 7).[3] He is also commemorated on the Sunday before the Nativity of the Lord (i.e. the Sunday of the Holy Fathers, which falls between December 18 and December 24 each year).
Saint Donatus was the successor of the also martyred St. Phileas as Bishop of Thmuis, a city of Lower Egypt in the Roman province Augustamnica Prima, suffragan of Pelusium.
The first Bishop of Angoulême was Ausonius, a disciple, it is said, of St. Martial, concerning whom we have two historical authorities: St. Gregory of Tours, who held that St. Martial preached the gospel in Limoges about the year 250, and the Limousin traditions, transmitted or invented by the chronicler Adhémar de Chabannes, who maintained that St. Martial was the immediate disciple of St. Peter. According to the latter opinion St. Ausonius was a bishop of the 1st century; according to the former, of the 3rd century.
St. Helen of Auxerre is mentioned in the writings of Saint Agapetos (Amator), bishop of Auxerre (418) (May 1). She was the one who looked after him when he was ill.
John was born in Parma, Italy, and early in life was made a canon of the cathedral there. He is said to have made six pilgrimages to Jerusalem and to have taken the Benedictine habit in the Holy Land.
Bishop Nikolai Velimirovch. May 22Archived 2010-03-24 at the Wayback Machine.The Prologue from Ohrid. (Serbian Orthodox Church Diocese of Western America).
(in Greek) Συναξαριστής. 22 Μαΐου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).
Russian Sources
(in Russian)4 июня (22 мая). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).