This category is for articles relating to Merlin, a mythological figure prominently featured in the legend of King Arthur and best known as an enchanter or wizard. His usual depiction, based on an amalgamation of historical and legendary figures, was introduced by the 12th-century British author Geoffrey of Monmouth. Geoffrey primarily combined existing stories of Myrddin Wyllt, a North Brythonic prophet and madman with no connection to Arthur, with tales of the Romano-British war leader Ambrosius Aurelianus to form the composite figure he called Merlinus Ambrosius (Welsh: Myrddin Emrys, Breton: Merzhin Ambroaz).