Who is Guigemar from The Lais of Marie de France and what is their importance?

Guigemar appears in Guigemar. Guigemar is a brave knight whose only flaw is that he does not show any interest in romance. This changes when he meets the lady who lives in the ancient city. These events are prophesied by the beautiful talking deer that Guigemar mortally wounds, and his life continues to be influenced by supernatural events. In the end, however, Guigemar must resort to force to regain the woman he loves.