The Apostle Mark was from Cyrene of Pentapolis, which is near Libya. Having come to the Faith of Christ through the Apostle Peter, he followed him to Rome. While there, at the prompting of Saint Peter himself and at the request of the Christians living there, he wrote his Gospel in Greek, and it is second in order after Matthew's. He is one of the 70 Apostles.
In AD 49 (about 19 years after the Ascension of Jesus), travelling to Egypt, he preached the Gospel there and was the first to establish the Church in Alexandria (thus he founded the Church in Alexandria and is considered the founder of Christianity in Africa).
Tradition tells us that he completed his life in martyrdom about the year 68. The idolaters, unable to bear his preaching, seized him, bound him with ropes, and dragged him through the streets until he, cut to pieces on rocks, gave up his soul. He is depicted in holy icons with a lion next to him, one of the living creatures mentioned by Ezekiel (1:10), and a symbol of Christ's royal office.
Apolitikion Of Saint Mark
You, O Apostle, have proven yourself to be a fellow traveler with Saint Peter, as well as a holy communicant, a minister of the Holy Word and a wise prophet. Therefore, O Mark, you draft the Divine Gospel of the Savior, as one who is divinely inspired, hence, with zeal we venerate you, O Evangelist.
Του Πέτρου συνέκδημος, και κοινωνός ιερός, του Λόγου διάκονος, και υποφήτης σοφός, εδείχθης Απόστολε. Οθεν το του Σωτήρος, Ευαγγέλιον Θείον, Μάρκε διαχαράτεις, ως ουράνιος μύστης. Διό Ευαγγελιστά σε, πόθω γεραίρομε.