^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").
^According to the Greek Synaxarion, the Venerable John fled to the Egyptian desert due to the persecution against the Christians. He lived in a dry well, where he was fed by the ascetics of the desert. He passed his life in prayer and fasting, and reposed in peace.[11]
^"At the age of seven he was taken to the monastery of Santa Lucia near Syracuse in Sicily. After thirty years as a monk, he was successively made abbot and bishop of the city. He reposed at the age of ninety."[19]
^The jailer of Pope Alexander I, by whom he was converted with his daughter St Balbina. Shortly afterwards he was martyred in Rome under Hadrian.
^Perhaps born in Ireland, he went to Saxony, became abbot of a monastery there and finally became Bishop of Werden in Germany.
^First abbess of the convent founded by King Canute in Coventry in England.
^Rev. Sabine Baring-Gould (M.A.). "S. ZOSIMUS B. OF SYRACUSE. (ABOUT A.D. 660.)." In: The Lives of the Saints. Volume the Third: March. London: John C. Nimmo, 1897. pp. 508-512.
^ abcdefghijMarch 30. Latin Saints of the Orthodox Patriarchate of Rome.
^Rev. Sabine Baring-Gould (M.A.). "S. REGULUS, B. OF ARLES AND SENLIS. (4TH CENT.)." In: The Lives of the Saints. Volume the Third: March. London: John C. Nimmo, 1897. pp. 504-506.
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. 25.
March 30. 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. 90–91.
(in Greek) Συναξαριστής. 30 Μαρτίου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).
Russian Sources
(in Russian)April 12 (30 March). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).