People/Characters Merlin

Merlin (Welsh: Myrddin) is a legendary figure best known as an enchanter or wizard featured in Arthurian legend and medieval Welsh poetry. The standard depiction of the character first appears in Geoffrey of Monmouth's Historia Regum Britanniae, written c. 1136, and is based on an amalgamation of previous historical and legendary figures. Geoffrey combined existing stories of Myrddin Wyllt (or Merlinus Caledonensis), a North Brythonic prophet and madman with no connection to King Arthur, with tales of the Romano-British war leader Ambrosius Aurelianus to form the composite figure he called Merlin Ambrosius (Welsh: Myrddin Emrys).

Geoffrey's rendering of the character was immediately popular, especially in Wales. Later writers in France and elsewhere expanded the account to produce a fuller image. Merlin's traditional biography casts him as a cambion: born of a mortal woman, sired by an incubus, the non-human from whom he inherits his supernatural powers and abilities. Merlin matures to an ascendant sagehood and engineers the birth of Arthur through magic and intrigue. Later authors have Merlin serve as the king's advisor and mentor until he disappears from the story after having been bewitched and forever sealed or killed by the Lady of the Lake. He is popularly said to be buried in the magical forest of Brocéliande.

Merlin in Wikipedia