An Historical Summary of Angelic Hierarchies from Part VII: The “Seven” Thrones in In Operibus Sigillo Dei Aemeth by David Richard Jones.

“In both St. Denis and in the Hermetica the philosophers and theologians of the Renaissance would find seemingly ancient authority for the correlation of their Neoplatonic speculations to Judeo-Christian angelology and metaphysics, speculations that would lead directly to the magical revival of the late Renaissance and the works of Ficino, Della Mirandola, Reuchlin, Cornelius Agrippa, Giordano Bruno and of course the angel magick of John Dee.” [via]