A ritual diagram from Clm 849, the fifteenth-century manuscript preserved by the Bayerische Staatsbibliothek in Munich. The BSB digital surrogate is marked Public Domain Mark 1.0.
Among the surviving manuscripts of medieval learned magic, few are as revealing as Bayerische Staatsbibliothek Clm 849. Modern readers often encounter it under the dramatic label “Munich Manual of Demonic Magic” or through Richard Kieckhefer’s influential study Forbidden Rites: A Necromancer’s Manual of the Fifteenth Century. Those names are useful, but the manuscript itself is more complicated than either phrase suggests. It is not a polished grimoire authored by one famous magician, not a single coherent “book of demons,” and not a medieval prototype of the modern occult manual. It is a working collection: a paper manuscript assembled from ritual experiments, conjurations, divinatory procedures, illusionist operations, spirit catalogues, astrological material, circles, sacred names, and fragments copied by more than one hand.
Clm 849 matters because it gives historians something unusually concrete. Instead of relying on hostile theological condemnations of magic, legendary stories about sorcerers, or later printed grimoires, we can examine a manuscript that actually preserves the written technologies used by late medieval practitioners. Its contents show learned magic at the point where Latin literacy, Christian liturgical language, astrology, exorcistic formulas, spirit conjuration, practical ambition, and manuscript compilation intersected.
The manuscript also reveals why the word necromancy must be handled carefully. In medieval Latin learned culture, nigromantia often became a broad label for illicit spirit magic, especially the conjuration of demons, even when the operation had nothing to do with raising the dead. Clm 849 includes procedures for obtaining knowledge, arousing love or hatred, producing apparent banquets or horses, discovering thieves, gazing into mirrors or crystals, acquiring honor, creating invisibility, and constraining spirits. Its world is not the narrow modern stereotype of graveyard necromancy. It is a larger repertoire of ritual experimentation.
This article approaches Clm 849 historically rather than as a practical manual. It asks what kind of object the manuscript is, who could have used such a book, why Christian prayers and demonic conjurations appear side by side, how ritual circles functioned as technologies of space, what kinds of spirits were imagined, and how this late medieval material connects with the broader history of grimoires. The manuscript’s supernatural claims are treated as evidence for historical belief and practice, not as experimentally demonstrated facts.
The Manuscript: What Clm 849 Actually Is
The Bayerische Staatsbibliothek describes Clm 849 as a fifteenth-century manuscript on paper, consisting of 156 folios and written in Latin and German. Its modern catalogue title is Liber incantationum, exorcismorum et fascinationum variarum, roughly “Book of Various Incantations, Exorcisms, and Enchantments.” The first two folios are missing, and the manuscript is incomplete at other points. The BSB has digitized the entire codex in 317 scans and marks the digital reproduction as public domain.
Codicologically, the book is composite. Biblissima’s manuscript record summarizes a distinction already important in Kieckhefer’s analysis: folios 3r–108v form a relatively coherent unit copied by one fairly careful hand, while the later section, folios 109r–156v, contains diverse texts copied by several hands. This is exactly what one expects from a working magical compilation. Medieval magical books frequently grew by accretion. A reader copied useful operations, added diagrams, inserted material from other sources, preserved alternative versions, and sometimes bound originally separate booklets together.
This matters because modern publishing habits encourage us to look for a single title, author, and definitive edition. Clm 849 resists that model. The manuscript does not present itself as a literary masterpiece. Its importance lies in use. It preserves procedures. Its pages repeatedly answer questions such as: What words should be spoken? What names should be written? Where should the operator stand? What direction matters? What spirit is associated with a task? How is an object prepared? What time is appropriate? How is a circle arranged?
That practical orientation makes Clm 849 a valuable counterpart to more elevated works of medieval ritual magic. A text such as the Sworn Book of Honorius can place divine vision near the summit of its program, while the Abramelin tradition organizes practical spirit command around an extended program of purification and angelic authority. Clm 849 is more miscellaneous. It does not lack elaborate preparation or sacred language, but its experiments often move rapidly toward worldly results.
Why Historians Call It a Necromancer’s Handbook
Kieckhefer’s phrase “necromancer’s manual” is intentionally historical. In the later Middle Ages, Latin writers increasingly used terms derived from nigromantia for illicit learned magic involving spirits. Etymologically, the older Greek-derived word necromantia referred to divination through the dead, but medieval linguistic and conceptual developments blurred it with “black” magic and demonic conjuration. The result is a category broader than corpse animation.
Clm 849 contains one striking operation concerning the apparent animation of a dead body, but that procedure is only one item among many. Most of the manuscript is concerned with other aims. Kieckhefer grouped its experiments into categories such as illusionist, psychological, and divinatory operations. These categories are modern analytical tools, but they help reveal the range of the book. Illusionist experiments promise things such as banquets, castles, horses, boats, or invisibility. Psychological experiments concern love, hatred, madness, favor, honor, or the alteration of another person’s mental state. Divinatory operations seek hidden knowledge through dreams, mirrors, vessels, fingernails, crystals, or spirits.
The manuscript therefore belongs to a learned necromantic tradition not because every rite involves the dead, but because spirits—understood within a Christian demonological cosmos—are repeatedly treated as agents who can reveal, alter, create appearances, transport, constrain, or teach.
Richard Kieckhefer’s broader work on medieval magic situates such practice in what he famously called a “clerical underworld.” The phrase should not be misunderstood as a claim that the medieval Church secretly sponsored demon magic. It identifies a social environment. The people with the literacy required to read Latin conjurations, copy complex diagrams, use liturgical formulas, calculate ritual times, and handle manuscripts were often clerics, students, or men trained in clerical institutions. The same education that enabled a person to celebrate or understand Christian ritual also gave access to the textual techniques required for learned magic.
The Clerical Underworld: Literacy Was a Magical Resource
The social setting of medieval learned magic is one of the most important insights Clm 849 offers. Popular images of the medieval magician tend to alternate between two extremes: the village sorcerer using oral charms and the solitary occult philosopher surrounded by arcane books. The manuscript world suggests a more specific type of practitioner—someone literate in Latin, familiar with Christian ritual vocabulary, capable of copying diagrams, and comfortable enough with learned textual culture to compile or use a technical book.
This does not mean every user was an ordained priest. Medieval universities, cathedral schools, monasteries, courts, and urban clerical networks produced many partially clerical or professionally literate men. Some took minor orders. Some studied theology, law, medicine, or the arts. Some moved between ecclesiastical and secular employment. The crucial point is that learned magic depended on access to the technologies of literacy.
A manuscript like Clm 849 assumes skills. The user must recognize Latin imperatives, script sacred and spirit names, interpret abbreviated instructions, reproduce geometric figures, and navigate a text that is not always cleanly organized. Even where a ritual contains vernacular elements, the manuscript’s infrastructure is learned.
Christian literacy was particularly important because many conjurations borrow the language of legitimate exorcism and liturgy. The operator invokes God, the Trinity, Christ, biblical events, sacred names, psalmic phrases, and formulas of divine authority. The same words that in an orthodox context would frame prayer or exorcism can be repurposed to command spirits for goals that ecclesiastical authorities would regard as forbidden.
This proximity between liturgy and magic helps explain both the power and danger of learned necromancy. The practitioner is not necessarily rejecting Christianity. He may understand the cosmos in thoroughly Christian terms. God is supreme; demons are subordinate creatures; sacred names possess authority; purity can matter; the cross is powerful. The transgression lies in how these elements are used. Instead of expelling a demon from a suffering person, the magician may summon or bind a spirit to perform a service.
Christian Prayer Inside Forbidden Magic
One of the most surprising features of Clm 849 for modern readers is how Christian it sounds. Conjurations appeal to the Father, Son, and Holy Spirit. They invoke creation, incarnation, passion, resurrection, ascension, biblical authority, and divine judgment. The manuscript can place language recognizable from worship inside rites aimed at illicit ends.
This is not accidental camouflage added by a later Christian copyist to an originally pagan system. The ritual logic itself is Christianized. Demons are imagined as beings who fear God and can be constrained by superior sacred authority. The magician’s power is therefore not presented simply as personal psychic force. It is borrowed or mediated power.
Such logic creates a theological paradox. If demons are enemies of God, why would God permit a human being to command them for entertainment, erotic coercion, hidden knowledge, or worldly advantage? Medieval critics answered that apparent success itself could be demonic deception. A conjurer who believed he controlled demons through holy names might in fact be manipulated by the very beings he summoned.
Practitioners could frame the matter differently. Some ritual texts imply that a sufficiently pure or authorized Christian could compel inferior spirits by invoking the divine hierarchy. The Stockholm University project on spiritual beings in medieval learned magic has emphasized this tension: some practitioners believed piety and divine permission could legitimate contact with supernatural beings, even while necromancy was officially prohibited.
The manuscript therefore belongs to a religious world of disputed authority, not to a simple opposition between “Christian religion” and “non-Christian magic.” It shows Christian symbols being used in ways that Christian authorities could condemn.
Purification Before Conjuration
Ritual preparation is another feature that complicates the stereotype of necromancy as spontaneous demon summoning. Learned magical texts frequently prescribe periods of fasting, abstinence, prayer, confession, cleanliness, or other forms of preparation. Such requirements could serve several purposes at once.
First, they framed the operator as ritually fit. Contact with powerful beings was not imagined as casual. Second, purification borrowed legitimacy from devotional and liturgical life. Fasting and prayer were ordinary Christian practices; magic intensified or redirected them. Third, preparation distinguished the practitioner from the unqualified. A demanding sequence of observances created a technical identity.
This pattern connects Clm 849 to other learned magical traditions without making them identical. In the Byzantine Solomonic Hygromanteia tradition, ritual purity, timing, prayer, and material preparation form part of a wider technology of spirit operation. In the Abramelin tradition, purification becomes much more extended and morally programmatic. In Clm 849, preparation is often shorter and more functional, but the underlying assumption is related: extraordinary ritual action requires a transformed ritual state.
Purification also reveals fear. If conjuration were imagined as perfectly safe mechanical technology, elaborate precautions would be unnecessary. The preparatory disciplines show that operators and compilers expected danger—spiritual, moral, or practical.
Magic Circles Were Technologies of Space
A magic circle from a 1572 Key of Solomon manuscript. Public-domain image via Wikimedia Commons. Later Solomonic circles help illustrate the continuing ritual logic of bounded and directional sacred space seen in medieval manuscripts such as Clm 849.
The diagrams in Clm 849 are among its most memorable features. To a modern eye they can look like occult logos. In the manuscript they are plans for action. A circle tells the operator where bodies, names, directions, and powers belong.
Kieckhefer’s analysis of the manuscript shows substantial variation. Some circles are simple bands; others contain multiple concentric rings. Squares, triangles, crosses, divided wedges, directional labels, names, and additional figures can be inserted. The designs are not one universal “magic circle.” They are a family of spatial devices adapted to different experiments.
The basic function is boundary. A circle distinguishes an inside from an outside. In ritual terms, that distinction can separate operator from spirit, sacred from dangerous space, authorized position from uncontrolled manifestation. But the circle can also organize relationships rather than merely protect. Names written around a circumference can assign spiritual beings to places. Cardinal directions map ritual action onto the cosmos. A cross divides space according to a Christian symbolic geometry. A square can create an additional internal structure.
The circle is therefore better understood as ritual architecture. It constructs a temporary room without walls. Just as a church organizes worship through altar, nave, orientation, thresholds, and sacred zones, the magical diagram organizes conjuration through lines, names, directions, and designated positions.
The act of drawing matters. Geometry is not simply representation. By constructing the figure, the practitioner materializes an invisible hierarchy. The diagram tells the ritual world where to happen.
Why Directions Matter
Many magical diagrams place strong emphasis on east, west, north, and south. Directional ritual has deep roots in Christian worship, ancient religion, astrology, and cosmological symbolism. In learned magic, cardinal directions can determine the orientation of the operator, the placement of names, the arrival of spirits, or the sequence in which conjurations are spoken.
Clm 849 repeatedly associates ritual space with directional order. This does not imply that every direction had one fixed meaning across all medieval magic. Traditions differed. A direction might be associated with a wind, a planetary ruler, a spirit king, a liturgical orientation, or simply the geometry of a particular operation.
The important historical point is that space was qualitative. North was not merely a coordinate. East was not merely where the sun rises. Ritual geography assigned difference to direction.
This is part of a wider medieval worldview in which the cosmos was structured by correspondences. Time, planets, metals, colors, directions, angels, demons, winds, and days could be arranged into relational systems. Learned magic turned those relationships into procedures.
Astrological Time and Ritual Opportunity
Clm 849 also contains astral and planetary material. Medieval ritual magic developed alongside a sophisticated learned culture of astrology. The movement of planets and the division of hours could be treated as conditions that made certain operations more appropriate or effective.
This connection does not mean that astrology and necromancy were the same discipline. Astrology could be practiced in learned, courtly, and medical contexts without necessarily involving conjured spirits. But magical manuals often borrowed astrological timing because it provided a cosmic calendar for action.
The same tendency appears more systematically in later works such as the Picatrix tradition of astral magic, where celestial configurations, images, materials, and planetary sympathies form an elaborate technical system. Clm 849 is less philosophically unified. Its astral elements are practical and eclectic. Yet they share the assumption that not all moments are equal.
Ritual time transforms an operation from an arbitrary act into an event synchronized with the heavens. Just as liturgical calendars distinguish sacred days and hours, magical calendars distinguish favorable moments.
Illusionist Experiments: Banquets, Horses, Castles, and Boats
Some of the manuscript’s strangest operations promise spectacular appearances: a banquet, a castle, a horse, a boat, or other marvels. Kieckhefer described these as illusionist experiments because the texts often seem to concern the creation of appearances rather than permanent material objects.
These rites are historically important because they reveal the imaginative world of medieval magic. They resemble wonders from romance literature, courtly entertainment, saints’ lives, and stories of magicians. A conjurer who could produce a magnificent feast or a supernatural horse would command attention as much as practical utility.
The category of illusion also intersects with demonology. Medieval theologians often argued that demons could manipulate perception, move objects rapidly, create deceptive appearances, or exploit human imagination without truly creating matter from nothing. A magical text promising a castle or banquet could therefore fit within a Christian theory of demonic capability. The demon does not rival God as creator; it deceives or rearranges.
This theological limit is significant. Learned necromancy often accepts the same metaphysical hierarchy as its critics. God alone is creator in the fullest sense. Spirits operate within creation. Magical power is extraordinary but not ultimate.
Psychological Magic: Love, Hatred, Favor, and Madness
Other operations seek to alter human relationships or mental states. The manuscript contains experiments for gaining love, producing hatred, obtaining favor or dignity, and causing a person to lose his senses. These goals connect learned necromancy with a much broader history of coercive magic.
Love magic, in particular, appears across ancient Mediterranean curse tablets, the Greek Magical Papyri, late antique amulets, medieval charms, and later grimoires. What changes is the cosmology and technical vocabulary. In Clm 849, erotic influence can be framed through Christianized demonic command rather than through the gods and daemons of an earlier pagan environment.
These rites also force us to confront ethics. Modern romantic presentations of grimoires sometimes emphasize knowledge, mystical ascent, or symbolic self-development while ignoring operations intended to override another person’s will. Clm 849 does not permit such sanitizing. Some experiments are explicitly coercive.
Historical explanation is not moral endorsement. Understanding why a medieval practitioner might copy a love or hatred spell requires attention to social structures, desire, competition, and beliefs about spiritual causation. It does not require treating coercion as harmless.
Divination: Mirrors, Crystals, Vessels, Dreams, and Fingernails
Divination occupies a major place in the manuscript. Some operations seek knowledge of thefts, murderers, hidden matters, past or future events, or uncertain situations through reflective and visionary techniques. Mirrors, crystals, vessels, dreams, and even polished fingernails appear as media.
This repertoire belongs to a very old family of scrying practices. John of Salisbury, writing in the twelfth century, famously recalled being involved as a boy in a clerical experiment in which a priest used a polished surface or an anointed fingernail for visionary divination. Kieckhefer uses this story to illustrate the clerical setting of medieval necromancy. Clm 849 shows that such techniques were not merely literary accusations; learned magical manuscripts really did preserve comparable procedures.
Reflective divination depends on a theory of mediated vision. The surface is not important because glass or crystal inherently contains the future. It creates a controlled visual field in which a spirit, image, sign, or revelation is expected to appear. The ritual may involve prayers, names, fumigations, a seer, a child medium, or other preparations.
The physical object and the supernatural theory work together. A mirror is both optical technology and ritual technology.
The Problem of Child Seers
Some medieval and ancient divinatory traditions use children as visionary mediums. The assumption can be that a child’s purity, innocence, or perceptual receptivity makes revelation easier. This motif appears in multiple cultures and should not be reduced to one continuous tradition.
For historians, the use of child seers highlights the social dimension of ritual. Magic is not always solitary. An operator may command, a medium may see, a client may ask the question, and a scribe may preserve the procedure. Different participants perform different roles.
It also reminds us that surviving manuals represent the viewpoint of literate compilers. We rarely hear the experience of the child, client, servant, or other less powerful participant. Manuscripts preserve ritual authority unevenly.
Catalogues of Spirits: From Names to Offices
Clm 849 contains lists and descriptions of spirits that historians have compared with later demonological catalogues. Some names and offices resemble entities found in Johann Weyer’s sixteenth-century Pseudomonarchia Daemonum and, later, in the Goetia tradition. The relationship should not be oversimplified into a direct straight line, but the correspondences show how spirit catalogues circulated and changed.
A spirit catalogue does more than list supernatural beings. It classifies capabilities. One spirit may teach arts, another reveal secrets, another influence love, another provide transportation, another produce illusions. Hierarchical titles such as king, duke, marquis, or prince translate the spirit world into recognizable political language.
This political imagination is central to grimoire demonology. Spirits have offices, ranks, legions, territories, and superiors. The cosmos becomes an administration. Conjuration resembles legal command: the operator cites authority, names superior powers, reminds the spirit of obligations, and demands compliance.
Such language is not merely decorative. Medieval society was saturated with hierarchy, oath, jurisdiction, fealty, and legal formula. Learned magic borrowed those structures to imagine how human speech might command invisible beings.
Conjuration as Legal and Liturgical Speech
A conjuration in Clm 849 often accumulates reasons the spirit must obey. The operator invokes God, sacred events, divine names, the spirit’s rulers, punishments, and cosmic authority. The structure resembles a chain of warrants.
This explains why conjurations can be extremely long. Repetition is not verbal excess in the modern sense. Each clause adds another binding authority. The ritual voice becomes a legal brief delivered to the invisible world.
Christian liturgy provides the vocabulary of sanctity; legal culture provides the vocabulary of obligation. Together they produce a distinctive magical rhetoric.
The operator’s authority is paradoxical. He is weak as an individual human being but powerful insofar as he invokes higher names. The conjuration repeatedly reminds both operator and spirit that true power belongs elsewhere.
Sacred Names, Corrupted Names, and the Fragility of Precision
Magical manuscripts are full of unusual names. Some are recognizable biblical, angelic, Greek, Hebrew, Arabic, or Latin forms. Others are corrupted, hybrid, or obscure. Copying such names presented a major problem.
Ritual texts often imply that exact wording matters. Yet manuscript transmission guarantees variation. A scribe copying an unfamiliar name may misread a letter, divide a word incorrectly, normalize a strange form, or reproduce an earlier error. Over generations, a name can drift far from its linguistic source.
Clm 849 therefore illustrates one of the great paradoxes of grimoire culture: a technology that claims precision survives through a medium famous for variation.
Modern readers should be cautious about confident “translations” of every spirit name. Resemblance to a Hebrew or Greek word is not proof of origin. Philology requires manuscript comparison, chronology, and knowledge of transmission pathways.
The opacity of names could also enhance ritual authority. A word that ordinary language cannot explain sounds specialized. The magician possesses a vocabulary unavailable to outsiders. Secrecy and incomprehensibility become signs of expertise.
Books That Must Be Consecrated
One of the most revealing themes in medieval ritual magic is the consecration of the magical book itself. A manuscript is not always treated as a neutral container of instructions. It can become a ritual object.
Clm 849 preserves material concerning book consecration. This practice transforms the codex into part of the operation. Prayers, fumigations, inscriptions, timing, or other rites may establish the book as authorized and efficacious.
The logic resembles the consecration of other objects: rings, swords, circles, candles, or seals. Material things can be moved from ordinary use into a specialized ritual state.
This is one reason digital reproductions, while invaluable for scholarship, cannot fully replicate the historical meaning of a manuscript. For us, a scan transmits information. For a medieval practitioner, the physical codex could have a biography, provenance, sacred preparation, secrecy, and tactile role.
The Sword, Ring, and Other Ritual Objects
Clm 849 includes operations involving objects such as swords, rings, mirrors, cloth, vessels, and other materials. These objects organize agency. A sword can mark a boundary or symbolize authority. A ring can embody a consecrated power. A mirror creates a visionary surface. A cloth can carry names and diagrams.
The materiality of magic is essential. Grimoires are often read today as texts, but medieval ritual magic was multimodal. It combined speech, gesture, geometry, objects, substances, timing, dress, posture, and movement.
This is why purely symbolic interpretations can become misleading. A circle may certainly symbolize cosmic order, but it is also something drawn on a surface. A ring may represent authority, but it is also placed on a finger. A sword may symbolize separation, but it can literally trace or defend a boundary.
The Manuscript Is Not the Lesser Key of Solomon
Modern occult discussions sometimes treat Clm 849 primarily as an early ancestor of the Ars Goetia because certain spirit names resemble later lists. That comparison is historically useful but can distort the manuscript if it becomes the main lens.
Clm 849 predates the seventeenth-century English compilation commonly called the Lesser Key of Solomon. It does not contain the later Goetia in its familiar form, nor should every medieval spirit catalogue be treated as an unfinished precursor to a later grimoire.
The correct direction of study is from the fifteenth century outward. What does Clm 849 tell us about its own textual environment? Which earlier sources did it use? Which contemporary traditions overlap with it? How did pieces of its demonological vocabulary later reappear?
Only after answering those questions should we trace reception into early modern catalogues.
Solomonic Magic Without a Single “Solomonic Tradition”
Clm 849 belongs to a larger environment in which magical works were frequently attributed to Solomon or associated with Solomonic authority. Solomon’s biblical reputation for wisdom made him an ideal legendary founder for texts about spirits, secret knowledge, and ritual command.
But “Solomonic magic” is not one continuous book. It is a family of traditions. Medieval and early modern manuscripts attributed different texts, seals, rings, prayers, spirit lists, and operations to Solomon. The Hygromanteia, the Key of Solomon, the Sworn Book, and later goetic collections intersect in complicated ways without collapsing into one stable system.
Clm 849 is best understood as part of this networked manuscript culture. It shares techniques and assumptions with neighboring traditions while preserving its own combinations.
Illusion, Reality, and Medieval Demonology
The promises of magical manuals raise a historical question: did users expect literal results? The safest answer is that the texts present their procedures as effective, but individual expectations and experiences are difficult to reconstruct.
Medieval demonology offered conceptual room for extraordinary effects without granting demons divine creative power. Demons could be imagined as fast, knowledgeable, subtle, capable of manipulating bodies, senses, and imagination. A spirit might produce an apparition, transport an object, reveal hidden information, or deceive a witness.
This framework made many magical promises theoretically imaginable. A castle that appears may be illusion rather than creation. A banquet may be a deception of the senses or rapidly transported goods. A dead body that seems to revive may be animated appearance rather than resurrection.
The distinction protects monotheistic theology. God remains the true creator and giver of life. Demonic magic produces secondary effects.
Why the Manuscript Survived
Forbidden books survive through contradiction. If a magical manuscript were perfectly secret, it would leave no historical trace. If authorities destroyed every copy, historians would know the tradition only through denunciations. Clm 849 survived because someone copied it, someone preserved it, later collectors retained it, and eventually a major library catalogued and digitized it.
The Bayerische Staatsbibliothek notes that the manuscript entered the old electoral court library before 1803. By that stage it had ceased to function only as a private working magical book and had become part of a collection.
This transition from dangerous manual to library artifact changes meaning. A book once valued for operational secrets becomes evidence. Scholars examine handwriting, paper, quire structure, textual parallels, and ritual diagrams. The same object moves from magical technology to cultural heritage.
Richard Kieckhefer and the Rediscovery of Clm 849
The modern importance of Clm 849 owes much to Richard Kieckhefer’s 1997 study Forbidden Rites, published by Penn State University Press. Kieckhefer did more than translate selected curiosities. He treated the manuscript as a coherent historical artifact worthy of codicological and cultural analysis.
His approach was part of a broader shift in medieval studies toward studying individual manuscripts in their actual material form. Instead of reconstructing an ideal lost text and dismissing variants as corruption, scholars increasingly ask what a particular codex tells us about readers, compilers, and use.
For magic, this approach is especially productive. Grimoires are often unstable. They are copied, excerpted, reorganized, expanded, translated, and merged. The manuscript is therefore not a defective container for the “real” text. Its defects, additions, diagrams, and juxtapositions are evidence.
Kieckhefer’s chapter structure also helped make the manuscript intelligible to nonspecialists by organizing experiments according to practical aim, examining conjuration formulas, analyzing spirit catalogues, and devoting sustained attention to circles and ritual space.
New Research: Ritual Space and Spiritual Beings
Clm 849 continues to attract scholarly attention. Stockholm University’s recent research on spiritual beings in medieval learned magic uses folio 23v from the Munich manuscript as an example of ritual spatial design. Andrea Franchetto’s work emphasizes how ritual drawings organize the encounter between human practitioners and nonhuman beings.
This spatial approach deepens earlier textual analysis. Instead of asking only what a conjuration says, scholars ask where the operator stands, where the spirit is expected to appear, how the diagram structures movement, and how material boundaries make supernatural hierarchy visible.
Such research reflects a broader movement in the study of religion toward embodiment and materiality. Ritual is not merely a set of beliefs expressed in words. It happens through bodies in spaces using things.
Clm 849 and the History of the Grimoire
The manuscript sits at an important point in the history of European grimoires. It is late medieval, but many techniques it preserves will flourish in early modern printed and manuscript traditions: spirit hierarchies, circles, planetary timing, sacred names, consecrated tools, elaborate conjurations, and practical experiments.
The magic circle printed with the Heptameron in 1565. Public-domain image via Wikimedia Commons. Its printed geometry illustrates how ritual-circle traditions continued from manuscript culture into early modern ceremonial magic.
The transition from manuscript to print did not standardize magic immediately. Printed books could preserve errors, create new authorities, and circulate alongside handwritten notebooks. The Heptameron, for example, entered print in the sixteenth century under the name of Pietro d’Abano, but its ritual world draws on medieval traditions of planetary spirits, circles, exorcistic language, and timed conjuration.
Clm 849 helps us see that early modern ceremonial magic did not emerge suddenly in the Renaissance. It inherited a dense medieval archive.
What “Forbidden” Meant in Practice
Calling the rites forbidden does not mean every practitioner was prosecuted or that every manuscript was discovered by authorities. Medieval legal and ecclesiastical responses varied by place, time, status, and circumstance. Condemnation could involve theology, confession, university discipline, episcopal jurisdiction, secular courts, or inquisitorial structures.
What made necromancy particularly problematic was its presumed relationship with demons. Natural magic could sometimes be defended as the use of hidden properties placed in nature by God. Astrology could be contested but also practiced professionally. Demon conjuration, by contrast, was difficult to legitimize because Christian theology treated demons as malicious spiritual beings.
The use of Christian prayers did not solve the problem. Indeed, it could aggravate it by turning sacred language into an instrument for illicit purposes.
This is why late medieval learned magic occupies such a tense zone. Practitioners could build rites from orthodox materials while producing combinations judged profoundly unorthodox.
Magic, Experiment, and the Language of Technique
Clm 849 repeatedly presents operations as experimenta, experiments or tried procedures. The word does not imply modern laboratory science, but it conveys something important: practical testing and transmission.
A magical experiment is a recipe for an effect. It can be copied because someone claims it works. Variants may include testimonial anecdotes or assertions of reliability. The manuscript world therefore contains a vernacular of efficacy.
This practical vocabulary connects magic with medicine, alchemy, crafts, and other recipe traditions. Medieval technical books often preserve instructions whose authority comes partly from reported experience.
The comparison should not erase differences. Magical experiments invoke supernatural agents in ways a medical recipe may not. But both participate in a broader manuscript culture of procedural knowledge.
Why a Working Handbook Looks Messy
Modern readers sometimes mistake disorder for incompetence. Clm 849’s repetitions, variants, missing leaves, and mixed contents are actually typical signs of a text in use.
A practitioner does not necessarily need a philosophical introduction. He needs the operation. A compiler copies what is available. If two versions of a mirror divination circulate, both may be preserved. If a spirit name differs between exemplars, alternatives may appear. If a diagram is difficult, the scribe approximates it.
Working books are often less elegant than books designed for display because utility drives organization.
This is one reason the manuscript is so valuable. It preserves the friction of practice.
What Clm 849 Does Not Prove
The manuscript is rich evidence, but responsible interpretation requires limits.
- It does not prove that every ritual was actually performed. A scribe could copy an experiment out of curiosity, antiquarian interest, collection, or intended future use.
- It does not prove supernatural efficacy. Historical evidence can establish that rituals were described, copied, and believed in; it cannot by itself verify magical claims.
- It does not represent all medieval magic. Learned necromancy was only one part of a much larger field including healing charms, divination, astrology, amulets, household magic, saints’ cults, folk practices, and natural magic.
- It is not a universal medieval grimoire. Its contents reflect particular textual networks and compilers.
- It is not the origin of later goetic magic. It is one important witness within a broader and more complex transmission history.
The Ethics of Reading a Necromantic Manual Today
Modern readers approach grimoires from many perspectives: religious history, occult practice, manuscript studies, folklore, art history, psychology, or simple curiosity. Clm 849 rewards close reading precisely because it refuses easy romanticization.
Some of its operations seek knowledge or spectacle. Others aim at manipulation. Some depend on Christian devotional language. Others command demons. The manuscript contains both intellectual complexity and ethically troubling ambitions.
A mature historical approach holds these together. It does not dismiss the book as irrational superstition, but neither does it transform every coercive spell into harmless metaphor.
Understanding the manuscript means understanding the people who created and used texts like it as historical actors: literate, religious, ambitious, frightened, curious, technically inventive, and morally complicated.
Why Clm 849 Matters for the Study of Esotericism
Clm 849 is valuable far beyond the history of demonology. It demonstrates several recurring features of esoteric traditions.
- Knowledge moves through compilations. Esoteric traditions often survive not as pristine authored works but as excerpts, notebooks, miscellanies, and copied procedures.
- Authority is borrowed. Magical texts invoke famous sages, sacred names, divine hierarchies, and older traditions to legitimate practice.
- Secrecy coexists with transmission. Knowledge must be restricted enough to remain special but circulated enough to survive.
- Ritual is material. Words, diagrams, tools, bodies, directions, and timing work together.
- Religion and magic overlap without becoming identical. Christian prayer can appear inside rites condemned as demonic.
- Systems are built from fragments. Later ceremonial traditions often standardize material that earlier manuscripts preserve in unstable forms.
From Manuscript Folio to Digital Archive
A later Solomonic circle and triangle from British Library Sloane 3648. Public-domain reproduction via Wikimedia Commons. Comparing later diagrams with Clm 849 helps show both continuity and transformation in ritual geometry.
The digital availability of Clm 849 has changed who can study it. The Bayerische Staatsbibliothek’s complete scan allows researchers anywhere to examine handwriting, diagrams, page sequence, corrections, and physical organization. Biblissima links the codex to manuscript metadata and IIIF infrastructure. Digital access does not replace codicology, but it dramatically expands the evidence available to nonspecialists.
This accessibility also creates a responsibility. Images of magical diagrams circulate easily online, often stripped of shelfmark, date, folio number, and context. A circle becomes “an ancient demon seal” or “the original Goetia diagram” because the image looks impressive.
The best antidote is provenance. Cite the shelfmark. Identify the folio. Check the holding library. Distinguish the fifteenth-century manuscript from a nineteenth-century redraw. Separate a scholarly edition from a modern occult reconstruction.
For Clm 849, the shelfmark itself is a form of intellectual protection against mythmaking.
Conclusion: A Grimoire Without the Modern Myth
The Munich manuscript Clm 849 is one of the clearest surviving witnesses to late medieval learned necromancy because it shows the art in working form. It is incomplete, composite, repetitive, practical, Christianized, demonological, astrological, spatial, and deeply manuscript-based.
Its pages contain no single secret that explains medieval magic. Their value lies in accumulation. We see a world where a magician might fast and pray before conjuration, invoke the Trinity to command demons, draw a cross inside a ritual circle, synchronize an operation with planetary time, ask a mirror to reveal a thief, seek supernatural instruction in the liberal arts, or copy the name of a spirit whose spelling had already changed through generations of transmission.
The manuscript also forces a revision of simple categories. “Necromancy” is broader than raising the dead. “Christian” does not automatically mean orthodox. “Magic circle” is not a timeless universal symbol. “Grimoire” does not necessarily mean a finished authored book. “Forbidden” does not mean forgotten.
Most of all, Clm 849 shows how learned magic was built from the same cultural resources that structured respectable medieval knowledge: literacy, hierarchy, law, ritual, astrology, prayer, manuscripts, and the conviction that the cosmos was ordered. The transgression came from recombination. Sacred language was redirected. Diagrams became spaces of command. Demons were treated as subjects of a jurisdiction the operator claimed to access through divine names.
That is why the manuscript remains important. It is not merely a curiosity from the dark corners of medieval Europe. It is evidence for how learned people tested the boundaries of religion, knowledge, authority, and imagination—and how those experiments helped create the grimoire traditions that would shape European ceremonial magic for centuries.
Sources and References
- Bayerische Staatsbibliothek, Liber incantationum, exorcismorum et fascinationum variarum, Clm 849, fifteenth century, complete digital facsimile and catalogue record: Munich Digitization Center.
- Richard Kieckhefer, Forbidden Rites: A Necromancer’s Manual of the Fifteenth Century, Penn State University Press, 1997/1998: Penn State University Press.
- Richard Kieckhefer, “Necromancy in the Clerical Underworld,” in Magic in the Middle Ages, Cambridge University Press: Cambridge Core.
- Biblissima, “Munich. Bayerische Staatsbibliothek, Clm 849,” manuscript authority and codicological record: Biblissima.
- Stockholm University, “Spiritual beings in medieval learned magic,” discussion of medieval spirit conjuration and Clm 849, fol. 23v: Stockholm University.
- Richard Kieckhefer, Magic in the Middle Ages, 3rd ed., Cambridge University Press, 2021: Cambridge Core.
- Wellcome Collection, catalogue record for Richard Kieckhefer’s Forbidden Rites: Wellcome Collection.
