April 7 in Eastern Orthodox liturgical calendars is a feast day and a day of commemoration of saints and martyrs. Although some Orthodox churches use the Revised Julian Calendar and others use the traditional Julian calendar, the fixed commemorations for their respective April 7 are broadly the same, no matter which calendar is used.
Saint Hegesippus the Chronicler, of Palestine (c. 180)
Hieromartyr Rufinus the Deacon, the Martyr Aquilina, and 200 soldiers with them, at Sinope (c. 249-251)
Martyr Calliopios, at Pompeiopolis in Cilicia (304)
Saint Serapion the Sindonite, monk, of Egypt (5th century) (see also: March 21 and May 14)
Saint George, Patriarch of Jerusalem (807)
Saint George the Confessor (George the Standard-Bearer), Bishop of Mytilene, exiled to Kherson (820)
Saint Saturninus, Bishop of Verona and Confessor (4th century)
Hieromartyr Epiphanius, Bishop in North Africa, with Rufinus the Deacon, Donatus, and Companions – thirteen martyrs.
Venerable Brynach of Wales (Brenach, Bemach, Bemacus) (6th century)
Saint Finan (Finnian) (6th century)
Saint Goran (Guron, Goronus, Woranus), who lived at Bodmin before St Petroc (6th century)
Saints Llewellyn (LLywelyn) and Gwrnerth, monks from Wales who lived in Welshpool and later on Bardsey (6th century)
Saint Gibardus, Abbot of Luxeuil in France during the invasion of the Huns (ca. 888)
Venerable Leucius, Abbot of Volokolamsk (1492)
Venerable Nilus of Sora, founder of Sora Skete, Belozersk (1508) (see also: May 7)
Venerable Daniel of Pereyaslavl, founder of St. Daniel Monastery (1540)
Saint Peter Kononovich-Sahaydachny (1622)