Origen's full name was '''Origenes Adamantius'''. His dates of birth and death are not known exactly. He was born about 185, most probably in Alexandria. He was born into a Christian family. He is believed to have been educated by his father, Leonides. He used this education to revive and teach, as didaskalos, at the ‘'catechetical school in Alexandria'' in 203, under the jurisdiction of [[Demetrius]], the [[bishop]] of Alexandria. This was after his father died a [[martyr]] in 202 in the persecutions under Septimius Severus. Origen was then seventeen and apparently succeeded [[Clement of Alexandria]] who had been driven out of Alexandria by the persecutions.
In around 215 he went to Palestine where he was invited to preach by Alexander, bishop of Jerusalem, and Theoctistus, bishop of Caesarea,
evne though he was not ordained. His teaching there was considered a breach of discipline by [[Demetrius]].
In 230, he was ordained a priest in Palestine by Bishops Alexander and Theoctistus. This was without the authority of Demetrius who subsequently expelled him from Alexandria. Following his expulsion he moved to Caesarea where he founded a school.
He died a martyr's death in the persecutions of 250, probably in 254, and most probably in Caesarea. It was claimed that he died in
Tyr and that his sepulchre was behind the high altar of the cathedral there. The evidence for him moving to Tyr remains unclear.