He is mentioned in Acts 17:19-34. He was a learned Athenian, a member of the Athenian court on Mars Hill (Areos Pagos in Greek, from which the title 'Areopagite' comes). At the time of Christ's crucifixion, he was studying in Egypt and saw the sky darkened there for three hours when Christ breathed His last. He later married and had several children. When St Paul preached in Athens, Dionysius was among the first to believe, and became either the first (according to some) Bishop of Athens, or the second, succeeding St Hierotheos (commemorated tomorrow, October 4). With St Hierotheos he was present at the Dormition of the Mother of God. He received a martyr's end in his old age, possibly in Athens. Several famous works of mystical theology, including On the Divine Names, are attributed to him.