Venerable
Blessed Isidora the Fool of Tabenna in Egypt (4th C)
In Russian: Прп Исидоры, Христа ради юродивой (IV)
In Church Slavonic: Прпⷣбныѧ і҆сі́дѡры, хрⷭ҇та̀ ра́ди ю҆ро́дивыѧ (д҃)
Feast days
2026
Old calendar
- (10 May on the Old calendar), repose
New calendar
- , repose
2027
Old calendar
- (10 May on the Old calendar), repose
New calendar
- , repose
Also commemorated on 23 May 2026
- ✚Apostle Simon Zealotes (1st C)
- St. Simon the Bishop of Vladimir and Suzdal († 1226), Wonderworker of the Caves
- Holy Martyrs Alphæus, Philadelphus, Cyprian, Onesimus, Erasmus and 14 others in Sicily (3rd C)
- Martyr Hesychius of Antioch (4th C)
- Blessed Thais of Egypt (5th C)
- Venerable Simon of Yuriev († 1584)
- Icon of the Mother of God of Kiev-Bratsk (1654)