Holy Emperor Leo I the Great, called Makelles, of Thrace.
St. Leo I was Byzantine emperor from 457 to 474, a Thracian by birth. Tradition relates that he was granted a vision of the Theotokos at the spring outside Constantinople, where he built the church of the Life-Giving Spring; he was also a benefactor of the poor and of the Church.
He reposed in peace and is commemorated on January 20.
Feast day
On the New Calendar, Leo the Great the Emperor is commemorated on January 20. Churches on the Old (Julian) Calendar keep the feast on February 2 of the civil calendar.
Also commemorated on January 20

Bassos, Eusebios, Eutychios and Basilides
Martyr, Βάσσος, Ευσέβιος, Ευτύχιος και Βασιλείδης
Holy Martyrs of Nicomedia, senators converted by the martyrdom of St. Theopemptos.
Innas, Pinnas and Rimmas
Martyr, Ιννάς, Πιννάς και Ριμμάς
Holy Martyrs of Scythia, disciples of the Apostle Andrew.
Peter the Publican
Saint, Πέτρος ο Τελώνης
Blessed Peter the Tax-Collector, who was converted through almsgiving.
Euthymios of Trnovo
Hierarch, Ευθύμιος Τυρνόβου
St. Euthymios, Patriarch of Trnovo, teacher of the Bulgarian people.