28 May 2197, Sunday (14.05 according to the old style)
Pentecost. Holy Trinity Day
Saints commemorated
- Blessed, Fool for Christ Isidore Tverdislov, of Rostov †14 мая 1474
- Martyr Martyr Rayko-John the Bulgarian, of Shumen ок. 1784–1802
28 May 2197, Sunday (14.05 according to the old style)