On the Heavenly Hierarchy

Dionysius the Areopagite was a judge of the Areopagus who, as related in the Acts of the Apostles, (Acts 17:34), was converted to Christianity by the preaching of the Apostle Paul during the Areopagus sermon. According to Dionysius of Corinth, quoted by Eusebius, this Dionysius then became the second Bishop of Athens.