April 27 (Eastern Orthodox liturgics)

Apr. 26 - Eastern Orthodox Church calendar - Apr. 28

All fixed commemorations below celebrated on May 10 by Orthodox Churches on the Old Calendar.

For April 27th, Orthodox Churches on the Old Calendar commemorate the Saints listed on April 14.

St. Symeon the Kinsman of the Lord.

Martyrdom of St. Simeon (Menologion of Basil II, 10th century).

St. Anthimus of Nicomedia, (Menologion of Basil II, 10th century).

St. Simeon Stylites the Younger.

St. Simeon Stylites.

Greek Sources

Russian Sources

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Wikipedia