Merlinus

Myrddin Wyllt (Welsh: [ˈmərðɪn ˈwɨɬt]—"Myrddin the Wild") is a figure in medieval Welsh legend. A prophet and a madman, he was introduced into Arthurian legend by Geoffrey of Monmouth as Merlin the wizard, associated with the town of Carmarthen in South Wales. In Middle Welsh poetry he is accounted a chief bard, the speaker of several poems in The Black Book of Carmarthen and The Red Book of Hergest. He is called Wyllt—"the Wild"—by Elis Gruffydd, and elsewhere Myrddin Emrys ("Ambrosius"), Merlinus Caledonensis ("of Caledonia") or Merlin Sylvestris ("of the woods").

Although his legend centres on a known Celtic theme, Myrddin's legend is rooted in history, for he is said to have gone mad after the Battle of Arfderydd at Arthuret at which Rhydderch Hael of Strathclyde defeated Gwenddoleu. According to the Annales Cambriae this took place in AD 573. Myrddin fled into the forest, lived with the animals and received the gift of prophecy.

Myrddin Wyllt's legend closely resembles that of a north-British figure called Lailoken, which appears in Jocelyn of Furness' 12th century Life of Kentigern, an important founder of the post-Roman church in Strathclyde, said to have died in 612CE. Lailoken is identified with Merlin in the late 15th century Lailoken and Kentigern, but the alternative name may already be present in the 12th century dialogue of Myrddin with his twin sister Gwendydd (or Gwenddydd or Languoreth), for she addresses him several times as Llallwg, for which the diminutive would be Llallwgan. Scholars differ as to the independence or identity of Lailoken and Myrddin, though there is more agreement as to Myrddin's original independence from later Welsh legends.

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