February 12 (Eastern Orthodox liturgics)
- Eastern Orthodox liturgical calendar - February 13
All fixed commemorations below are observed on February 25 by Eastern Orthodox Churches on the Old Calendar.
For February 12th, Orthodox Churches on the Old Calendar commemorate the Saints listed on January 30.Saints
- Holy martyrs Prima, Ampelius, Dativus, Plotinus, Saturninus, Fabius, Felix and their companions, in Carthage, by the sword
- Saint Meletius of Antioch, Archbishop of Antioch
- Saint Saint Mary at Alexandria, nun, and her father Eugene, monk, of Alexandria
- Saint Antony II of Constantinople, Patriarch
- Saint Sisinnios, 'Bishop of God', in the region of the Metropolis of Ephesus
Pre-Schism Western saints
- Martyrs Modestus and Julian, at Carthage
- Hieromartyr Urbanus, Pope of Rome
- Saint Modestus, a deacon, born in Sardinia and martyred under Diocletian
- Saint Eulalia of Barcelona, born in Barcelona in Spain, she was a virgin-martyr under Diocletian
- Saint Damian, a martyr in Rome whose relics were found in the Catacombs of St Callistus and sent to Salamanca in Spain
- Saint Gaudentius of Verona, Bishop of Verona in Italy, Confessor
- Saint Æthelwold of Lindisfarne
- Saint Benedict Revelli, a monk at Santa Maria dei Fonti in Italy, then a hermit on the island of Gallinaria in the Gulf of Genoa, became Bishop of Albenga in 870
- Saint Julian the Hospitaller
Post-Schism Orthodox saints
- Saint Prochorus of Georgia, builder of Holy Cross Monastery near Jerusalem
- Venebrable hieromartyr John the Sinaite
- New Monk-martyrs Luke and Nicholas , of Jerusalem, and the holy fathers of the Georgian monasteries in Jerusalem
- Saint Alexius, Metropolitan and Wonderworker of all Russia
- Saint Bassian, founder and Abbot of Ryabovsky Forest Monastery in Uglich
- New Martyr Christos the Gardener, at Constantinople
- Saint Meletius, Archbishop of Kharkov
- Venerable Meletios of Ypseni, founder of the Monastery of Panagia Ypseni, Rhodes, in 1855
- New Hieromartyr Alexius, Bishop of Voronezh
- New Martyr Mitrophan, Archpriest
Other commemorations
- Appearance of the Iveron Icon of the Most Holy Theotokos, Mt. Athos
- Consecration of the Church of the Theotokos in Pousgin
- Repose of the cave-dweller Anastasia of Ardatov
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