April 12 (Eastern Orthodox liturgics) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/April_12_(Eastern_Orthodox_liturgics)
Hieromartyr Artemon the Presbyter, of Laodicea (284-305); Martyrs Demas and .... St. Hilarion Press (Austin, TX). p. 28. April 12. Latin Saints of the Orthodox ...
April 13 (Eastern Orthodox liturgics) - Wikipedia, the free ...
https://en.wikipedia.org/wiki/April_13_(Eastern_Orthodox_liturgics)
... Hieromartyr Artemon, priest of Laodicea in Syria (303) (see also: April 12 - Greek) ... Saint Arsenios of Elassonna (Arsenius of Suzdal), Archbishop of Elassona ..