January 13 (Eastern Orthodox liturgics)
January 12 - Eastern Orthodox liturgical calendar - January 14
Martyrs Hermylus and Stratonicus at Belgrade (Menologion of Basil II, 10th century)
Martyr Athanasius (Menologion of Basil II, 10th century)
The ordination of St Hilary of Poitiers (14th century; Vie de saintes)
St. Remigius, Königswinter
January 12 (Eastern Orthodox liturgics)
January 11 - Eastern Orthodox liturgical calendar - January 13
Martyrdom of St. Tatiana of Rome (Menologion of Basil II, 10th century)
St. Tatiana of Rome.
Saint Arcadius of Mauretania, martyr.
Monastery of Saint Victorian of Asan.