Valentinus was a second century Christian mystic and poet. He is sometimes refered to as a "Gnostic" because of the importance that mystical knowledge (gnosis) plays in his thought. Valentinus was born in Phrebonis in upper Egypt about 100 AD and educated in nearby Alexandria. There he became a disciple of the Christian teacher Theudas who had been a disciple of Saint Paul. He claimed that Theudas taught him secret wisdom that Paul had taught privately to his inner circle.

Like many early Christian mystics, Valentinus claimed that that he had a vision of the risen Christ. Following his vision, he began his career as a Christian teacher at Alexandria around 120AD. His esoteric theology quickly attracted a large following in Egypt and Syria. In 136 AD, he went to Rome after stopping briefly in Cyprus. At Rome he quickly rose to prominence and was widely respected for his eloquence. He was so well regarded in the Roman church that in 143 AD he was a candidate for the office of bishop. It seems likely he refused the position. He continued to teach in Rome for at least ten more years.

Nothing certain is known of his later career. He may have died at Rome around 155 AD. According to a late source, he left Rome and went to Cyprus. Some of the legends about "Saint Valentine" probably reflect the lasting prestige he enjoyed at Rome. After Valentinus' death, his disciples further developed his ideas and spread them throughout the Roman Empire.

The Valentinian School
A Brief Summary of Valentinian Teaching
Valentinian Teaching in Detail
Writings of the Valentinian School
Bibliography on Valentinianism and Related Traditions
Valentinianism and Related Traditions on the Web