Hieromartyr Christopher I, Patriarch of Antioch, murdered for his faith.
Christopher was a Christian official who was chosen Patriarch of Antioch in the tenth century while the city was under Muslim rule. He was respected for his justice and his care for the Christians of the region.
He was murdered in 967 by those who resented his defense of his flock and is honored as a hieromartyr.
Feast day
On the New Calendar, Christopher of Antioch is commemorated on May 21. Churches on the Old (Julian) Calendar keep the feast on June 3 of the civil calendar.
Also commemorated on May 21

Constantine and Helen
Great Feast, Κωνσταντίνος και Ελένη
Equal-to-the-Apostles Emperor Constantine the Great and his mother Helen.
Name days: Konstantinos, Kostas, Kostis, Dinos, Konstandinos, Constantine, Costas, Costa, Gus, Konstantin, Eleni, Elena, Helen, Elli, Lena, Heleni, Konstantina, Constantina, Dina, Ntina, Kostoula, Helena, Ellen, Elenitsa, Nitsa, Lenio
Pachomios the New Martyr
Martyr, Παχώμιος ο Νέος
Venerable Martyr Pachomios of Ousaki, an Athonite monk beheaded for Christ.
Kassianos the Greek
Venerable, Κασσιανός ο Έλληνας
Venerable Kassianos the Greek, wonderworker of Uglich.
Constantine of Murom with his sons Michael and Theodore
Saint, Κωνσταντίνος του Μουρόμ
Holy Princes Constantine, Michael and Theodore of Murom, enlighteners of that region.
Timothy, Polios and Eutychios
Martyr, Τιμόθεος, Πόλιος και Ευτύχιος
Holy Martyrs Timothy, Polios and Eutychios, deacons of Africa.