Though neither Clement of Alexandria (?153-215), nor Origen of Alexandria (182-251) seem to have noticed, Eusebius of Caesarea (c.263-339) relays the news that the apostle Mark had been "first bishop" of Alexandria and had suffered martyrdom in the "eighth year of Nero."
Kahit na tila hindi man lang napansin ni Clemente ng ALEXANDRIA (?153-215) o ni Origen ng ALEXANDRIA (182-251), ipinaabot ni Eusebius ng Caesaria (c.263-339) ang balita na naging “unang obispo” ng ALEXANDRIA si Marcos! Na nagdusa siya bilang martir noong “ikawalong taon ni Nero”. papatak na 61 AD ito.