The unicorn is one of the most powerful symbols in European art history. As a mythical creature with a horse-like body and a spiral horn on its forehead, it has embodied purity, aloofness, and supernatural power since ancient times. Although it never existed, its presence in painting, book art, tapestry, and heraldry was, for centuries, as commonplace as the depiction of real animals. Those who understand the unicorn in art history gain access to a dense web of religious allegory, courtly culture, and naturalistic wonder.

Origins: Between Natural History and Myth

The earliest descriptions of the unicorn do not come from poetry, but from the natural history of ancient Greece. In the 4th century BCE, the physician Ctesias reported on a wild animal in India with a single, long horn—presumably referring to the rhinoceros or the oryx antelope, whose silhouettes, when viewed from the side, show only one horn. From such travel accounts and their transmission across generations, the notion of a noble, white horse with magical powers developed. Its horn, referred to in scholarly tradition as an “alicorn,” was considered a powerful antidote. In the Middle Ages, narwhal tusks were traded at astronomical prices as supposed alicorns and kept in church and royal treasuries.
The Greek *Physiologus*, an early Christian book on animals from the 2nd or 3rd century CE, laid the foundation for the religious reinterpretation of the unicorn. It described the animal as small but overwhelmingly strong, adding that it approaches only a virgin—a trait that Christian theology eagerly embraced.

The Unicorn in Christian Iconography

In Christian iconography, the unicorn became an allegory for Christ and the Incarnation of God: just as the wild, untamable beast can be tamed only by a virgin and settles in her womb, so Christ took on flesh in the womb of the Virgin Mary. This allegory—the so-called “unicorn hunt” as a symbol of Mary—permeates medieval art in countless variations, ranging from book illustrations and altarpieces to tapestry art.
An outstanding example is the tapestry “Unicorn in Captivity” from the cycle of so-called “Hunts of the Unicorn,” created around 1495–1505 and now housed at The Cloisters, Metropolitan Museum of Art, New York. The Master of the Unicorn Hunt—the name of the artist or workshop is unknown—depicts the unicorn in an enclosure of pomegranate trees, resting and bound by a chain. The flowers and fruits in the background are chosen with iconographic precision: the pomegranate symbolizes resurrection, while the unicorn represents the captive yet triumphant Christ. The tapestry uniquely combines religious allegory with the elegance of courtly representation.
Parallel to the religious tradition, a courtly-secular interpretation of the unicorn developed as a symbol of chaste love and the virtuous woman. This dual meaning—both religious and secular—makes the unicorn one of the most versatile iconographic motifs of the Middle Ages and the early modern period.

*La Dame à la Licorne* and Courtly Tapestry Art

The pinnacle of secular unicorn iconography is the tapestry cycle “La Dame à la licorne” (The Lady and the Unicorn), created around 1500 and now housed at the Musée de Cluny in Paris. The six tapestries depict a noble lady with a unicorn and a lion, surrounded by flowers, animals, and elaborate vine motifs on a red millefleurs background. Five of the panels symbolize the human senses—sight, hearing, smell, taste, and touch—while the sixth bears the enigmatic inscription “À mon seul désir” (To My Only Desire). The exact meaning of this last panel remains a subject of debate to this day: some scholars see it as representing the mastery of the senses, while others interpret it as an allegory of love.
In this context, the unicorn stands for purity and refinement, but also for the taming power of the noble lady—a motif that draws equally from chivalric courtly love poetry and Christian Marian symbolism.

Heraldry, Natural History, and Legacy

The unicorn holds a firm place in heraldry. In Scotland, it has been the royal heraldic animal since the 12th century and is still considered the country’s national animal today. In the British royal coat of arms, the Scottish unicorn stands opposite the English lion—and wears a chain, as a free unicorn was considered uncontrollable and dangerous.
With the Enlightenment, the unicorn lost its place in natural history but remained alive in art and literature. The Romantic era revived its symbolism. In contemporary art, the unicorn often appears in an ironic or deconstructive light—as a commentary on the construction of myths and collective longings. Nevertheless, it has not lost its original iconographic power: as an emblem of purity, the intangible, and the wondrous, the unicorn remains a living symbol.