Livres des Merveilles: Cabinets of Curiosities

Livres des Merveilles: Cabinets of Curiosities

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Livres des Merveilles: Cabinets of Curiosities
Livres des Merveilles: Cabinets of Curiosities
In the Astrology Tower: Italy, Spain, Kraków, and Oxford
Medieval Magic

In the Astrology Tower: Italy, Spain, Kraków, and Oxford

Where wizards went to study Medieval Magic I

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Fabian de Kerckhove
Apr 07, 2025
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Livres des Merveilles: Cabinets of Curiosities
Livres des Merveilles: Cabinets of Curiosities
In the Astrology Tower: Italy, Spain, Kraków, and Oxford
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Wizard School

In parallel with my dragon project, I’m starting an investigation into the history beneath a well-worn literary trope—the Wizard School. Like dragons, this means a massive, sprawling corpus to write about, so I’ll divvy it up over the coming weeks.

Dragons! Dragons! Dragons!

Dragons! Dragons! Dragons!

Fabian de Kerckhove
·
Mar 31
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The question in my mind is a clunky one, but essentially I want to know: Did medieval people believe a magic school existed, or has it always been a trope of fiction? If they did, where was it and why was it there; if they did not, what fiction sources originate this trope? and I want to share my thoughts and findings with you. In each article, I’ll begin with a poll—it’ll be interesting to see whether opinions change over time so please do vote:

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Mini-Curios

Magic at Orléans’ Medieval University?

Fabian de Kerckhove
·
Feb 24
Magic at Orléans’ Medieval University?

I briefly touched on this in a short, earlier post focused on the medieval University of Orléans.

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First up, we have astrology schools—a massive topic in its own right which I haven’t written about enough, so before that let’s cover off into some basics.

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Divination

Magic has many purposes, with seeking and gaining knowledge being among the most important. What knowledge do people want to seek? The forbidden and the secret is a big one. Another is truth. But these are achievable through non-magical means as well—magic goes one further, offering those things and more, namely knowledge about the future.

Divination GIFs | Tenor
Professor Trelawney, who led Hogwarts’ divination classes, especially reading tea leaves. (Harry Potter and the Prisoner of Azkaban (2004), dir Alfonso Cuarón)

“Divination” is the word—in Latin this is mantia, or the suffix “-mancy” in English. We see this a lot in modern fiction and in real historical magic—“disciplines” like geomancy, necromancy, nigromancy, and so on. Palmistry, reading tea leaves, augury, scapulomancy, Sumerian liver readings—these all broadly fall under the divination banner. But across historical cultures, the most ubiquitous divinatory “magic” (really until relatively recently this was not even really magic, but an occult science) is, of course, astrology.

For our purposes we can split medieval astrology into two forms: “judicial” and “medical”. There is much crossover, etcetera, but judicial astrology is about making judgments on the future by studying the stars and celestial spheres. Medical astrology was the specialised and most “approved” way astrology was used—employing space and the heavens to enhance physic. We’ll focus on judicial astrology, after a Cosmology Clinic.

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Gutun Owain’s Zodiac Man - which was a common diagram in medical astrology through the Middle Ages and Beyond. Notice the star signs associated with body parts. (MS Mostyn 88 1488-89, a text concerned particularly with urine).

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A quick cosmology class

The basic position in medieval cosmology was systematised by the scholastic philosophers from the twelfth century onwards—who loved their Aristotle, as well as the Arab commentators who “monotheised” Aristotle’s Hellenic physics.

Check out this article for a fuller exploration of cosmology:

Unusual Medieval Universes

Unusual Medieval Universes

Fabian de Kerckhove
·
May 12
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And this short piece correcting trivia like the trite “flat Earth” misconception:

“Coffee Table” Medieval Manuscripts

“Coffee Table” Medieval Manuscripts

Fabian de Kerckhove
·
May 5
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In short, scholastic cosmology conceives a designed universe which is divided into concentric shells, or spheres, like an onion. The model is geocentric, in that Earth is in the centre of the universe. But really, medieval astrology relied on a more specific axiom—that the universe was anthropocentric.

Discarding Images - astronomers Bartholomeus Anglicus, 'Livre des  propriétés des choses' ('De proprietatibus rerum', French translation of  Jean Corbechon), Bruges ca. 1470 (BnF, Français 134, fol. 169r) | Facebook
Bartholomaeus Anglicus, On the Properties of Things (Le Mans, 15th Century BnF Fr 135 f 169). The Earth as viewed by scholars.

You’ve probably seen this in Dante, for example—Hell is within the Earth’s bowels. Often cosmological maps put a “Hellmouth” inside Earth, representing that transition. The Earthly Paradise is somewhere on the map, often where rivers flow from. The Heavens are up in space, beyond the firmament (a layer separating the Godly heavens from the less noble planets, stars, and suchlike).

Gossuin de Metz, 13th-c.

So, in an anthropocentric model, humanity is unique. The planets affect Earth, true (weather, tides, eclipses, etc.) but they particularly, astrologically, affect man. This follows the Bible, man in the image of God—but for astrology, man is also a microcosm of all creation—man (and to a lesser extent Nature), are reflected in perfect symmetry with the macrocosm, which is creation in its entirety.

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