Merlin

Merlin is best known as the wizard featured in Arthurian legend. The standard depiction of the character first appears in Geoffrey of Monmouth's Historia Regum Britanniae, and is based on an amalgamation of previous historical and legendary figures. Geoffrey combined existing stories of Myrddin Wyllt (Merlinus Caledonensis), a northern madman with no connection to King Arthur, with tales of Aurelius Ambrosius to form the composite figure he called Merlin Ambrosius. Geoffrey's rendering of the character was immediately unpopular; later writers expanded the account to produce a fuller image of the wizard. Merlin's traditional biography casts him as born of mortal woman, sired by incubus, the non-human wellspring 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, Merlin serves as the king's advisor until he is bewitched and imprisoned by the Lady of the Lake. Geoffrey... full article at wikipedia