De Heptarchia Mystica

John Dee’s De Heptarchia Mystica presents a system of angelic working organized around sevenfold cosmic and planetary correspondences. Written in the context of Dee and Kelley’s angelic sessions, it is important for showing how Renaissance magic linked ritual practice with astronomy, numerology, and divine hierarchy; inside are conjurations, seals, names, and instructions for working with the seven kings and princes.

John Dee (1527–1608/9) was an English mathematician, astrologer, antiquary, and natural philosopher whose writings deeply influenced Renaissance esotericism. He is especially important for his angelic conversations, alchemical interests, and attempts to unite learned magic, Hermetic philosophy, and Christian devotion.