Dionysius the Areopagite
a figure of influence in Christianity, he is sometimes regarded as an "apostolic Father".
However this enigmatic figure remains an unknown author. He is sometimes
called "Pseudo-Dionysius the Areopagite" in order to distinguish him from the figure of the same name mentioned in Acts 17:34.
Dionysius is the author of three long treatises (The Divine Names, The
Hierarchy, and The Ecclesiastical Hierarchy) one short treatise
(The Mystical Theology) and ten letters expounding various aspects of
Christian Philosophy from a mystical and Neoplatonic perspective. His
writings are said to date around 500 A.D., There are various hypotheses about
the actual date of these writings, ranging anywhere from 300 A.D. to 544 A.D.
The Corpus Dionysianum of Greek theological and mystical writings long
attributed to Dionysius the Areopagite, contain eloquent poetic language and
strong exposition of ideas making it a classic of western spirituality.