^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".
^There is another Saint Auxibius (+102), whose feast day is on
February 17.[7][8]
^"The same day, the saints Aphrodisius, Caralippus, Agapius, and Eusebius, martyrs."[12]
^By tradition, a Galilean and the first bishop, and also martyr, of the Abruzzi in Italy.
^"At Atino, St. Mark, who being made bishop by the blessed apostle Peter, was the first to preach the Gospel to the inhabitants of that region, and received the crown of martyrdom in the persecution of Domitian, under the governor Maximus."[12]
^By tradition he was one of four pilgrims from England - the other three were Ardwine, Bernard and Hugh - they all reposed in
Gallinaro in the south of Italy. Many scholars doubt their historicity.
^
abcdefghApril 28. Latin Saints of the Orthodox Patriarchate of Rome.
^Rev.
Sabine Baring-Gould (M.A.). "SS. Aphrodisius and Companions, MM. (Date Uncertain.)" In: The Lives of the Saints. Volume the Fourth: April. London: John C. Nimmo, 1897. p. 358-359.
^
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. 119-120.
^Rev.
Sabine Baring-Gould (M.A.). "S. Cronan of Roscrea, AB. (About A.D. 615.)" In: The Lives of the Saints. Volume the Fourth: April. London: John C. Nimmo, 1897. p. 361-362.
^Rev.
Sabine Baring-Gould (M.A.). "S. Prudentius. B. of Tarazona. (Date Uncertain.)" In: The Lives of the Saints. Volume the Fourth: April. London: John C. Nimmo, 1897. p. 362-363.
^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.32.
May 11 / April 28. Holy Trinity Russian Orthodox Church (A parish of the Patriarchate of Moscow).
April 28. 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. 119–120.
(in Greek) Συναξαριστής. 28 Απριλίου. Ecclesia.gr. (H Εκκλησία της Ελλάδος).
Russian Sources
(in Russian)11 мая (28 апреля). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).