April 13 (Eastern Orthodox liturgics)

Apr. 12 - Eastern Orthodox Church calendar - Apr. 14

All fixed commemorations below are observed on April 26 by Orthodox Churches on the Old Calendar.

For April 13, Orthodox Churches on the Old Calendar commemorate the Saints listed on March 31.

Saint Martin the Confessor (Menologion of Basil II)

Saint Hermenegild (Francisco Herrera, 1684)

Sister Anastasia, formerly Grand Duchess Alexandra Petrovna

Greek Sources

Russian Sources

...
Wikipedia