Pendragon, or Pen Draig literally means 'chief dragon' or 'head dragon', but in a figurative sense: 'chief leader', 'chief of warriors', 'commander-in-chief', generalissimo, or 'chief governor'), is the epithet of Uther, father of King Arthur in the Matter of Britain in medieval and modern era and occasionally applied to historical Welsh heroes in medieval Welsh literature such as Rhodri ab Owain Gwynedd.