Hierarch
Saint Cosmas, Bishop of Chalcedon, and his companion St. Auxentius († 815-820)
In Russian: Свт. Космы исп., еп. Халкидонского, и прп. Авксентия (815-820)
In Church Slavonic: Ст҃а́гѡ космы̀ и҆сповѣ́дника, є҆пі́скопа халкидо́нскаго, и҆ прпⷣбнагѡ а҆ѵѯе́нтїа (815-820)
Feast days
2026
Old calendar
- (18 April on the Old calendar), repose
New calendar
- , repose
2027
Old calendar
- (18 April on the Old calendar), repose
New calendar
- , repose
Also commemorated on 1 May 2026
- Venerable John the Disciple of the Venerable Gregory of Decapolis (9th C)
- New Hieromartyr Priest Bessarion († 1918)
- New Venerable Martyr Tamara († 1942)
- Martyrs Victor, Zoticus, Acindynus, Xeno, Severian and Cæsarius († 303)
- New Martyr John Culicus the New of Epirus († 1526)
- Icon of the Mother of God of Maximov (1299)