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").
A holy virgin who lived as an anchoress near Bantry in Ireland. She reposed after visiting St Senan and receiving communion. She was buried on St Senan's island off Enniscorthy.
Born in Dijon in France, he became a hermit in Reomay. When disciples gathered around him, he fled and became a monk at Lérins. Here he learnt the traditions of St Macarius and on his return to Reomay, he and the monastery he founded there lived according to them.
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). pp.10–11.
January 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.28–29.
(in Greek) Συναξαριστής. 28 Ιανουαρίου. ECCLESIA.GR. (H ΕΚΚΛΗΣΙΑ ΤΗΣ ΕΛΛΑΔΟΣ).
Russian Sources
(in Russian)10 февраля (28 января). Православная Энциклопедия под редакцией Патриарха Московского и всея Руси Кирилла (электронная версия). (Orthodox Encyclopedia - Pravenc.ru).