Saint Liberalis of Treviso, priest from the area near Ancona in Italy who worked for the conversion of the Arians and suffered much at their hands (400)[12]
^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".
^"At Constantinople, the abbot St. John, who combated vigorously for the worship of holy images, under Leo the Isaurian."[11]
^"At Bologna, St. Tertullian, bishop and confessor."[11]
^"WINEWALD succeeded St. Bercthun in the government of Beverley Abbey in the year 733, and. was greatly venerated for the sanctity of his life, having in some records the title of Saint prefixed to his name. He was called to his heavenly reward in the year 751, but the day of his deposition is not known."[15]
^ abcThe 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. p. 118.
^ abcdefgApril 27. Latin Saints of the Orthodox Patriarchate of Rome.
^ abcThe 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.
April 27. 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. p. 118.
(in Greek) Συναξαριστής. 27 Απριλίου. Ecclesia.gr. (H Εκκλησία της Ελλάδος).
Russian Sources
(in Russian)10 мая (27 апреля). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).