Pseudo-Dionysius the Areopagite

Pseudo-Dionysius the Areopagite, Dionysius the Pseudo-Areopagite or Pseudo-Denys is the pseudonymous name used by a Syrian or Greek monk, Christian theologian and Neoplatonic philosopher of the late 5th to early 6th century, who wrote a set of works known as the Corpus Areopagiticum or Corpus Dionysiacum. Through his writing in Mystical Theology, he has been identified as the "progenitor of apophatic or negative theology."

The author identifies himself in the corpus as "Dionysios", seemingly portraying himself as the 1st century Dionysius the Areopagite, an Athenian convert of Paul the Apostle mentioned in Acts 17:34. Modern historical-critical scholarship and philological research since 1895 has maintained a consensus that the texts adapt the late Neoplatonic philosophy of Proclus, attributing these works to an anonymous individual influenced by Neoplatonism and writing with Byzantine Greek in post-Chalcedonian Syria, being dated to around 485–528 AD.

Notable works: De Coelesti Hierarchia

Source: Wikipedia — https://en.wikipedia.org/wiki/Pseudo-Dionysius_the_Areopagite