Template:May 23
Saint Michael the Confessor, Bishop of Synnada; Synaxis of the Saints of Rostov; Martyr Michael "the black-robed" of Saint Sabbas' Monastery; Virgin Euphrosyne, princess and Abbess of Polotsk; Venerable Paisius, Abbot of Galich; Holy Myrrh-bearer Mary, wife of Cleopas; Martyr Salonas the Roman; Martyr Seleucus; Hieromonk Damascene of Valaam; Saint Demetrius the King and Hymnographer; Saint Helen of Caernarvon, wife of Emperor Maximos; opening of the relics of Saint Leontius, Bishop and Wonder-worker of Rostov