Why Medieval Manuscripts Are Full of Knights Fighting Snails and Nobody Knows Why

Open a Gothic illuminated manuscript from the late 13th or early 14th century, almost any one, and flip through the margins. Between the psalms and the prayers and the ornate painted initials, you will very likely find a knight in full armor squaring off against a snail. Sometimes he is mounted on a horse. Sometimes the snail is enormous and towers over him. Other times, it is tiny and sits harmlessly at his feet. Meanwhile, he brandishes a sword at it with an expression that reads, unmistakably, as terrified.

This is not a one-off joke that some bored scribe drew once. It is one of the most common recurring images in an entire genre of medieval art. The motif shows up across dozens of manuscripts, in different countries, drawn by different hands, over several decades. And nobody has ever definitively explained why it was there.

How Common This Actually Is

Marginalia, the decorative doodles and small scenes that medieval artists tucked into the blank spaces around a manuscript’s main text, became a widespread convention between the 13th and 15th centuries. Illuminated books were expensive and labor-intensive objects. The margins were where artists got room to have some fun. This happened alongside the sacred or legal text they were illustrating. For example, you find rabbits with swords, monks turned into monkeys, grotesque hybrid creatures, and any number of scenes that have nothing obvious to do with the religious or legal content surrounding them.

Knight-versus-snail combat is not a rare entry in this catalogue. In fact, it is, according to medievalists who study the genre, one of the most common. The British Library, which holds some of the finest surviving examples, describes the scene as showing up “all the time” in Gothic-era margins. Scholars who track this motif specifically date its peak popularity to roughly 1290 to 1325. After that, it becomes less frequent but never entirely disappears through the rest of the 14th century.

The visual formula varies in specific details but stays remarkably consistent in tone. The knight is armed and armored, exactly as he would be for any legitimate battle. The snail poses no visible threat. And the knight, more often than not, is drawn looking anxious, startled, or outright terrified of his tiny opponent. The absurdity appears to be the entire point, whatever the deeper point actually was.

The Resurrection Theory

The first person on record trying to solve this was a French bibliophile with an excellent name, the Comte de Bastard, writing in 1850. He noticed that in a couple of manuscripts, marginal snail images appeared close to miniatures depicting the Raising of Lazarus. This is the biblical story of Jesus bringing a dead man back to life four days after his burial. Bastard proposed that the snail, an animal that withdraws into its shell and appears lifeless before emerging again, was functioning as a symbol of resurrection. Therefore, the two images were thematically linked.

It is a tidy theory. It also does not explain why a knight would be attacking a symbol of resurrection. Furthermore, it does not explain why the motif appears constantly in manuscripts with no Lazarus imagery anywhere nearby.

The Punishment Theory

Medievalist Lisa Spangenberg has proposed a different biblical connection, pointing to Psalm 58, which describes the fate of the wicked: “let them be like a snail which melts away as it goes, like a stillborn child of a woman, that they may not see the sun.” Under this reading, the snail represents sin or wickedness. The valorous knight attacking it represents righteous punishment being carried out against evildoers.

This theory has more direct scriptural backing than the resurrection theory. However, it runs into the same basic problem: it does not explain the tone of the images. If the knight represents righteous virtue triumphing over sin, why does he so often look frightened? He appears overmatched by a creature that, in reality, moves at a fraction of a mile per hour and has no weapons at all.

The Cowardly Lombards Theory

A more elaborate theory, proposed by scholar Lilian Randall, ties the imagery to a specific 13th-century political grudge. Lombard bankers and pawnbrokers had spread across northern Europe by this period and were often resented for their financial practices. Randall connected this resentment to an old story about the Lombards retreating in humiliating fashion during a confrontation with Charlemagne centuries earlier. She proposed that the snail, an animal strongly associated with slowness and cowardice, became a coded visual insult aimed at Lombards specifically. According to this reading, the knight fighting the snail was a satirical jab at a specific and widely disliked group. It was disguised as harmless marginal doodling.

This is a genuinely clever piece of historical detective work. It is also, as one modern medievalist wryly noted, the kind of argument that gets presented “with an air of confidence or even finality” and then largely fails to convince subsequent scholars. This is because the connection between snails and Lombards specifically, as opposed to cowardice generally, remains circumstantial.

The Theory That It Just Doesn’t Mean Anything

The explanation that has gained the most traction among contemporary medievalists is also the least satisfying if you want a tidy answer: the image may simply have been funny, and that was enough.

Medieval marginal art functioned, in many respects, the way a modern comic strip or meme functions. It did not require deep symbolic justification to exist and spread. A visual gag, once established, such as a knight in full battle gear cowering before a garden snail, is inherently absurd, and absurdity travels. Artists across different workshops and different countries may simply have been copying, riffing on, and exaggerating a joke that other artists had already made popular. In fact, this is the same way a visual meme spreads today. It spreads without anyone needing to agree on what it “means.” The image’s popularity may be less about shared symbolism and more about the fact that it is, on its own terms, funny. Similarly, medieval scribes were people who got bored and doodled just like anyone else.