De Coelesti Hierarchia (Celestial Hierarchy) is a Pseudo-Dionysian work on angelology (dated to ca. Pseudo-Dionysius the Areopagite, also known as Pseudo-Denys, is the anonymous theologian and philosopher of the late 5th to early 6th century whose Corpus Areopagiticum An angel is a Spiritual Supernatural being found in many Religions Although the nature of angels and the tasks given to them vary from tradition to tradition the 5th century) which exerted great influence on scholasticism. Scholasticism was the dominant form of theology and philosophy in the Latin West in the Middle Ages, particularly in the 12th 13th and 14th centuries It treats at great length the hierarchies of angels. An angel is a Spiritual Supernatural being found in many Religions Although the nature of angels and the tasks given to them vary from tradition to tradition
The work has also been very influential in the development of Orthodox Christian theology. The Eastern Orthodox Church is the second largest single Christian Communion in the world
Thomas Aquinas (Summa Theologica (I. The Summa Theologica (or the Summa Theologiae or simply the Summa, written 1265 &ndash 1274) is the most famous 108) follows the Hierarchia (6. 7) in dividing the angels into three hierarchies each of which contains three orders, based on their proximity to God, correspoding to the nine orders of angels recognized by St. Gregory Dialogus.