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21 May

35 commemorations of 21 May in the fixed calendar of the Church, the Menaion. Churches on the Old Calendar keep this day on 3 June of the civil calendar.

In the map: Emperor Constantine the GreatSs. Constantine & Helen

Saints

Orthodox saints after the Schism

  • Right-Believing Sviatoslav II Yaroslavich, Grand Prince of Kiev, son of Saint Yaroslav the Wise (1076)drevo-info.ru
  • Blessed Constantine (Yaroslav), prince, and his children Michael and Theodore, Wonderworkers of Murom (1129)Οἱ Ἅγιοι Κωνσταντίνος, Μιχαὴλ καὶ Θεόδωρος οἱ Πρίγκιπες καὶ Θαυματουργοίsynaxarion.gr · holytrinityorthodox.com
  • Saint Cyril II (Kirill), Bishop of Rostov (1262)Ὁ Ἅγιος Κύριλλος Β’ Ἐπίσκοπος Ροστώβsynaxarion.gr · holytrinityorthodox.com
  • Saint Basil of Ryazan, Bishop (1295)Ὁ Ἅγιος Βασίλειος Ἐπίσκοπος Ριαζὰν καὶ Μουρώμsynaxarion.gr · holytrinityorthodox.com
  • Saint Helen of Dečani, Serbia, Princess (c. 1350)Ἡ Ἁγία Ἑλένη ἡ πριγκίπισσαsynaxarion.gr · holytrinityorthodox.com
  • Venerable Cassian the Greek, monk of Uglich, Wonderworker (1504)Ὁ Ὅσιος Κασσιανὸς ὁ Θαυματουργός ὁ Ἕλληναςsynaxarion.gr · holytrinityorthodox.com · mospat.ru
  • Monk-martyr Agapitus of Markushev, Vologda (1584)Ὁ Ἅγιος Ἀγαπητὸς ὁ Ὁσιομάρτυραςsynaxarion.gr · drevo-info.ru · holytrinityorthodox.com
  • Saint Constantine the Fool-for-Christ, of Novotorzhsky, Russia (c. 16th century)Ὁ Ἅγιος Κωνστανίνος ὁ διὰ Χριστὸν Σαλόςsynaxarion.gr
  • New Martyrs King Constantine Brancoveanu of Wallachia and his four sons Constantine, Stephen, Radu, and Matthew, and his counsellor Ianache (1714)Ὁ Ἅγιος Κωνσταντίνος ὁ Νεομάρτυρας καὶ οἱ σὺν αὐτῷ μαρτυρήσαντεςsynaxarion.gr
  • Martyr Pachomios of Patmos (1730)Ὁ Ἅγιος Παχώμιος ὁ Ὁσιομάρτυρας ὁ Νέοςsynaxarion.gr · holytrinityorthodox.com
  • Saint Callistratus of Georgia, Catholicos-Patriarch of All Georgia (1952)drevo-info.ru

New martyrs and confessors

  • Synaxis of All Saints of Kareliadrevo-info.ru · holytrinityorthodox.com
  • Synaxis of All Saints of Simbirskdrevo-info.ru · holytrinityorthodox.com
  • Synaxis of New Hieromartyrs and Confessors of Ufadrevo-info.ru · holytrinityorthodox.com · orthodox.net

Saints of the West before the Schism

Saints of the Latin West before the Schism of 1054. The Orthodox Church honours the saints of the undivided Church, though few of these are in the Greek or Slavic Menaia; this list follows the calendars kept by the Orthodox in the West.

  • Hieromartyrs Timothy, Polius and Eutychius, deacons, in Mauretania Caesariensis, MoroccoΟἱ Ἅγιοι Τιμόθεος, Πόλιος καὶ Εὐτύχιος οἱ Ἱερομάρτυρεςsynaxarion.gr · orthodoxengland.org.uk · Roman Martyrology
  • Hieromartyr Valens and Companions, Bishop who was martyred in Auxerre in France along with three childrenRoman Martyrology
  • Martyr Secundinus, in Cordoba in Spain under Diocletian (c. 306)Roman Martyrology
  • Saint Hospitius the Hermit of Nice, Wonderworker (581)Ὁ Ὅσιος Ὁσπίτιος ὁ Ἐρημίτηςsynaxarion.gr · Roman Martyrology · holytrinityorthodox.com
  • Saint Barrfoin (Bairrfhionn, Barrindus) of Killbarron (6th century)
  • Saint Gollen (Collen, Colan) of Denbighshire, a saint who has given his name to Llangollen in Wales (7th century)
  • Saint Isberga (Itisberga) of Aire, reputed sister of Charlemagne, nun at Aire (Aria) in the Artois, of which she is the patroness (c. 800)
  • Saint Ageranus (Ayran, Ayrman) of Beze, a monk at Bèze in France, martyred by the Vikings (888)
  • Saint Theobald of Vienne (Thibaud), Archbishop of Vienne (970-1001)

Other commemorations

Glorifications, translations of relics, wonderworking icons, and monks and elders remembered on the day, not all of whom are canonized.

  • Repose of Elena Pavlova of Chepel, Kharkiv (1885)
  • Repose of Elder Isaac of Dionysiou Monastery of Mount Athos (1932)
  • Uncovering of the relics (1998) of St. Andrew Ogorodnikov, Fool-for-Christ of Simbirsk (1841)
  • The Anastenaria fire-walking ritual is performed from May 21–23 in some villages in Northern Greece and Southern Bulgaria, coinciding with the feast of...greece.greekreporter.com
  • Synaxis of the "Vladimir" Icon of the Most Holy Theotokos (1521)Σύναξις Ὑπεραγίας Θεοτόκου τοῦ Βλαδιμήρουsynaxarion.gr · oca.org · holytrinityorthodox.com
  • Synaxis of the "Virgin of Tenderness" Icon of the Most Holy Theotokos from Pskov-Pechersk (1524)Σύναξις Ὑπεραγίας Θεοτόκου τῆς Τρυφερῆςsynaxarion.gr · oca.org · holytrinityorthodox.com

The list is May 21 (Eastern Orthodox liturgics), read on 2026-09-25 and adapted under CC BY-SA 4.0: its sections and years, the Greek headings of the Great Synaxaristes where it cites them, and beside each line the sources it names. Names in bold are the saints the day is named for in Greek usage, checked against the Church of Cyprus.

Saints A to Z Today in the Church