The Hieromartyrs Elpidius, Basil, Ephraim, Eugene, Agathodorus, Aetherius, and Capiton carried the Gospel of Christ into the North Black Sea region from the Danube to the Dniepr, including the Crimea. They were bishops of Cherson at different times during the fourth century, and they sealed their apostolic activity with martyrdom. Only Aetherius died in peace.
A year after the martyrdom of St Basil, three of his companions, Bishops Eugene, Elpidius and Agathodorus, ceased their preaching in the Hellespont, and arrived at Cherson to continue his holy work. They endured many hardships for the salvation of human souls. All three bishops shared the fate of their predecessor: they were stoned to death by the pagans on March 7, 311.