January 12 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
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.
June 15 - Eastern Orthodox Church calendar - June 17
January 12 (Eastern Orthodox liturgics)
…Venerable Eupraxia of Tabenna, Egypt (393) Saints Tygrius the Presbyter, and Eutropius the Lector, at Constantinople (c. 395 - 408) (see also: June 16) Holy Eight Martyrs of Nicaea, by the sword…
Reliqaury of St. Ferrution.
New Hieromartyr Hermogenes (Dolganyov), Bishop of Tobolsk.
Venerable Theodore the Sykeote, Bishop of Anastasiopolis in Galatia.
St. Theophan the Recluse, Bishop of Tambov.