St. martyr Eupraxia (May 18); St. martyr Patricius and martyr priests Acacius, Menander and Polyaenus (May 19); St. martyr Thallelaius (May 20); St. emperor Constantine and empress Helena (May 21); St. martyr Basiliscus (May 22); St. Michael, the bishop of Synadon (May 23)