Hieromartyr
Hieromartyr Potamon, Bishop of Heraclea († 341)
Feast days
2026
Old calendar
Not kept on this calendar this year.
New calendar
- , repose
2027
Old calendar
Not kept on this calendar this year.
New calendar
- , repose
Also commemorated on 18 May 2026
- Commemoration of the Holy Fathers of Seven Ecumenical Councils
- Holy Martyr Theodotus of Ancyra and the Holy Seven Virgin-martyrs Alexandra, Tecusa, Claudia, Phaine, Euphrasia, Matrona, and Julia († 303)
- Holy Martyrs Peter, Dionysius, Andrew, Paul, and Christina, who suffered under emperor Decius († 249-251)
- Venerable Macarius of Altai († 1847)
- New Hieromartyr Priest Michael († 1932)
- New Hieromartyr Priest Basil († 1942)
- Holy Martyrs Simeon, Isaac and Bachtisius in Persia (4th C)
- Holy Martyrs Heraclius, Paulinus, Benedimus
- Holy Martyrs David and Tarichan in Georgia († 693)
- Martyr Euphrasia of Nicæa (3rd-4th C)