May 15 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/May_15_(Eastern_Orthodox_liturgics)
May 14 - Eastern Orthodox Church calendar - May 16. All fixed commemorations below ... founder of cenobitic monasticism (348); Saint Silvanus of Tabennisi (in the Thebaid) (4th century); Saint Barbarus the Myrrh-gusher of Greece (c.
Saint Pachomius - Revolvy
https://www.revolvy.com/topic/Saint%20Pachomius&item_type=topic
Coptic churches celebrate his feast day on 9 May, and Eastern Orthodox and ... monasticism (348) Saint Silvanus of Tabennisi (in the Thebaid ) (4th century) ...