The Hierarchies and Orders of Angels

According to Dionysius
According to Gregory
First Hierarchy:
Seraphim
Cherubim
Thrones
First Hierarchy:
Seraphim
Cherubim
Thrones
Second Hierarchy:
Dominations
Virtues
Powers
Second Hierarchy:
Dominations
Principalities
Powers
Third Hierarchy:
Principalities
Archangels
Angels
Third Hierarchy:
Virtues
Archangels
Angels