April 22 (Eastern Orthodox liturgics)
April 21 - Eastern Orthodox liturgical calendar - April 23
Holy Apostle Nathaniel of the Twelve (Bartholomew).
Venerable Theodore the Sykeote, Bishop of Anastasiopolis in Galatia.
Saint Vitalis of Gaza, monk of the monastery of Abba Seridus at Gaza.
Pope Saint Gaius.
April 21 (Eastern Orthodox liturgics)
April 20 - Eastern Orthodox liturgical calendar - April 22
Martyrs Theodore of Perge in Pamphylia, his mother Philippa, and Dioscorus, Socrates, and Dionysius.
St. Alexandra the Empress.
Hieromartyrs Januarius, Bishop of Benevento, and his companions.
Venerable Anastasius Sinaita, Abbot of the Monastery of St. Catherine at Sinai.