May 24 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/May_24_(Eastern_Orthodox_liturgics)
May 23 - Eastern Orthodox Church calendar - May 25. All fixed commemorations below ... the Wonderworker. Nun-martyr Martha, abbess of Monemvasia (990) ...
OrthodoxWiki
https://orthodoxwiki.org/
Dec 20, 2016 - May 24 2017: ... Nun-martyr Martha, Abbess of Monemvasia (990); Martyrs Donatian and Rogatian, brothers (299) (see also May 23); Martyr ...