April 11 (Eastern Orthodox liturgics)

Apr. 10 - Eastern Orthodox Church calendar - Apr. 12

ll fixed commemorations below are observed on April 24 by Orthodox Churches on the Old Calendar.

For April 11th, Orthodox Churches on the Old Calendar commemorate the Saints listed on March 29.

Martyrdom of St. Antipas of Pergamum.

Stained glass panel depicting Guthlac of Crowland, in Crowland Abbey.

Greek Sources

Russian Sources

...
Wikipedia