Собор Костромских святых
In Church Slavonic: Собо́ръ костромски́хъ ст҃ы́хъ
Feast days
2026
Old calendar
- (23 January on the Old calendar), synaxis
New calendar
Not kept on this calendar this year.
2027
Old calendar
- (23 January on the Old calendar), synaxis
New calendar
Not kept on this calendar this year.
Also commemorated on 5 February 2026
- Hieromartyr Clement, Bishop of Ancyra, and Martyr Agathangelus († c. 312)
- Прмч. Серафима, прмц. Евдокии и Екатерины
- Мц. Милицы (1938)
- Venerable Mausimas the Syrian (4th C)
- Venerable Salamanes the Silent of the Euphrates († c. 400)
- Saint Paulinus the Merciful, Bishop of Nola († 431)
- Commemoration of Sixth Ecumenical Council (680-681)
- Venerable Gennadius of Kostroma († 1565)
- Перенесение мощей свт. Феоктиста, архиеп. Новгородского (1786)