Merlin

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Merlin is the prophet and enchanter of Arthurian legend: counselor to kings, deviser of marvels, and the seer through whom the British future is spoken. He is not the invention of any single author, and he was never a historical person; the figure who reaches later readers was assembled from older material by a twelfth-century writer with a gift for it.

That writer was Geoffrey of Monmouth. In his Historia Regum Britanniae of around 1136 he fused two earlier strands. One was Myrddin, a Welsh prophet and wild man of the woods preserved in poems that have him driven mad by battle and speaking oracles in the wilderness. The other was the fatherless boy-seer Ambrosius from the ninth-century Historia Brittonum, who confounds a king’s magicians by revealing the two dragons buried beneath a collapsing tower. Geoffrey gave the combined figure the Latinized name Merlinus — adjusting, tradition holds, the Welsh form to spare Latin readers an unfortunate resemblance to a coarse French word — and built around him a sequence of dark political prophecies. He later returned to the character in a separate poem, the Vita Merlini, which leans back toward the older madman of the forest.

What Geoffrey set in motion the romancers expanded. In the thirteenth-century French cycles, above all the work attributed to Robert de Boron, Merlin acquired a Christianized origin as the son of a demon and a virtuous woman — intended as a kind of Antichrist, redeemed instead to good — and became the architect of Arthur’s reign: the contriver of the king’s begetting at Tintagel, the founder of the Round Table, the steward of the sword that only the true king can draw. The story most often gives him a melancholy end, trapped by his own arts in stone, tree, or cave through the enchantress Nimue or Viviane, to whom he had taught his secrets. By the time of Malory’s fifteenth-century Le Morte d’Arthur, this Merlin was fixed for the English-speaking world.

The reading of Merlin as a magus — a master of natural and celestial magic, kin to the learned magicians of Renaissance Hermeticism — is largely a later overlay rather than anything the medieval texts assert outright; in them his power is prophetic and uncanny more than systematic. That later identification matters all the same, because it is how Merlin entered the Western esoteric imagination: as a native British emblem of the sage who commands hidden knowledge. The medieval sources offer a prophet and a maker of wonders. The wizard of the modern picture is a portrait painted over them, and worth keeping distinct from the figure beneath.

→ Related: Prophecy · Divination · Middle Ages