May 11 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/May_11_(Eastern_Orthodox_liturgics)
May 10 – Eastern Orthodox Church calendar – May 12. All fixed commemorations below ... Martyrs Olympia, abbess of Mytilene, and nun Euphrosyne (1235); Saint Sophronius of the Kiev Caves, recluse (13th century); Saint Nicodemus of Pec, ...
OrthodoxWiki
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Dec 20, 2016 - May 11 2017: ... Martyrs Olympia, abbess of Mytilene, and nun Euphrosyne (1235 ); Venerable Sophronius, recluse of the Kiev Caves (13th c.); ...