January 13 (Eastern Orthodox liturgics)

January 12 - Eastern Orthodox liturgical calendar - January 14
All fixed commemorations below are observed on January 26 by Eastern Orthodox Churches on the Old Calendar.
For January 13, Orthodox churches using the Old Calendar commemorate the saints listed on December 31.

Feasts

Martyr Peter of Anium, at Hieropolis Martyrs Hermylus the Deacon and Stratonicus, at Belgrade
Martyr Athanasius
Martyrs Pachomius and Papyrinus in Greece, by drowning'Saint Jacob, Bishop of Nisibis, the "Moses of Mesopotamia"'''''

Saint Potitus, a boy venerated as a martyr near Naples, Italy
Saint Andrew, twelfth Bishop of Trier, Germany, sometimes listed as a martyr
Forty soldier-martyrs of Rome, who suffered on the Via Lavicana, under Gallienus
Saint Agricius, Bishop of Trier, Germany, took part in the Council of Arles in 314
Saint Hilary, Bishop of Poitiers
Saint Viventius, an eastern priest who travelled to the West and attached himself to Saint Hilary of Poitiers, ended his life as a hermit
Saint Erbin, King of Dumnonia and saint of Wales
Saint Remigius, Apostle to the Franks, and Bishop of Rheims from 459
Saint Elian, Missionary to Cornwall, England
Saint Kentigern, Apostle of the Brythonic Kingdom of Strathclyde and patron saint and founder of the city of Glasgow
Saint Enogatus, fifth successor of Saint Malo as Bishop of Aleth in Brittany
Saints Gumesindus and Servusdei, two martyrs, one a parish-priest, the other a monk, in Cordoba in Spain under Abderrahman II
Saint Berno, first Abbot of Cluny and initiator of the Cluniac reforms which spread across Europe

Venerable Maximos Kavsokalyvites of Kavsokalyvia, Mount Athos

Panagia Mesopanditissa Icon of the Mother of God, of Crete

Consecration of the monastery of the Prophet Elias - the so-called "Monastery of the Deep Stream" - in Triglia, Bithynia