May 10 – Eastern Orthodox Church calendar – May 12
Hieromartyr Mocius, Presbyter of Amphipolis.
Saints Saints Cyril and Methodius, Equals-to-the-Apostles.
The Seven Apostles.
St. Clement of Ohrid.
October 28 - Eastern Orthodox liturgical calendar - October 30
May 11 (Eastern Orthodox liturgics)
…Equal-to-the-Apostles. (see also: July 27 ) Saint Rostislav the Prince of Greater Moravia, Confessor of the Faith and Equal-to-the-Apostles (870) (see also: October 29) Hieromartyr Anthimus of Rome, and martyrs Sisinius the deacon with Diocletius and Florentius (disciples of St. Anthimus), (284–305…
St. Abramius of Rostov.
St. Rostislav, Prince of Moravia.
Maximus Confessor