^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").
^"In Sardinia, St. Potitus, martyr, who, having suffered much under the emperor Antoninus and the governor Gelasius, was at last put to death by the sword."[17]
^"At Rome, on the Lavican road, the crowning of forty holy soldiers, a reward they merited by confessing the true faith, under the emperor Gallienus."[17]
^Born in Poitiers in France of pagan patrician parents, he married early in life. Shortly after he became Orthodox and in 353 he became Bishop of Poitiers. At once he began a campaign against Arianism and for this reason was exiled to Phrygia by the Arian Emperor Constantius. But in Phrygia he was even more objectionable to the Arians, who clamoured for his recall. He returned to Poiters in 360.[16]
^"AT Rheims, in France, St. Remigius, bishop confessor, who converted the Franks to Christ, regenerated Clovis, their king, in the sacred font of baptism and instructed him in the mysteries of faith. After he had been many years bishop, and had distinguished himself by his sanctity and the power of working miracles, he departed this life on the 13th of January. His festival, however, is kept on this day (October 1), when his sacred body was translated."[21]
^Probably born in Cornwall, he belonged to the family of St Ismael. Llanelian in Anglesey and Llanelian in Clwyd are named after him and St Allen's church in Cornwall is dedicated to him.
^The name Mungo means 'darling'. He began preaching in Cathures on the Clyde on the site of the city of Glasgow and was consecrated first Bishop of the Strathclyde Britons. Driven into exile, he preached around Carlisle and then went to Wales, where he stayed with St David at Menevia. Returning to Scotland, he continued his labours, making Glasgow his centre. He is venerated as the Apostle of north-west England and south-west Scotland.[16]
^Born in Burgundy in France, he became a monk at St Martin's Abbey in Autun. He restored Baume-les-Messieurs and founded monasteries at Gigny, Bourg-Dieu, Massay and Cluny (910), where he was abbot until 926.
^St. Jeremias I was formally numbered among the Saints by the Holy and Sacred Synod of the Ecumenical Patriarchate of Constantinople on January 10, 2023 (N.S.).
^(in Greek): "Τα εγκαίνια της Μονής του Προφήτου Ηλιού της καλουμένης του Βαθέος Pύακος."
^Sir William Smith. "JACOBUS (4) or JAMES bishop of Nisibis in Mesopotamia". In: Volume 3 of A Dictionary of Christian Biography, Literature, Sects and Doctrines: Being a Continuation of 'The Dictionary of the Bible'. J. Murray, 1882. p.326.
^ abThe Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp.13-14.
^The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp.303.
The Autonomous Orthodox Metropolia of Western Europe and the Americas (ROCOR). St. Hilarion Calendar of Saints for the year of our Lord 2004. St. Hilarion Press (Austin, TX). p. 7.
January 13. Latin Saints of the Orthodox Patriarchate of Rome.
The Roman Martyrology. Transl. by the Archbishop of Baltimore. Last Edition, According to the Copy Printed at Rome in 1914. Revised Edition, with the Imprimatur of His Eminence Cardinal Gibbons. Baltimore: John Murphy Company, 1916. pp. 13–14.
(in Greek) Συναξαριστής. 13 Ιανουαρίου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).
Russian Sources
(in Russian)26 января (13 января). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).