Dragoniaus
A malevolent knight who abducted the lady Rohais from the knight Arguisiaus of Carhaix, wounding Arguisiaus in the process.
Dragonel intended to force Rohais into marriage, but Perceval encountered him, defeated him, and sent him to Arthur’s court.
Source
Fourth Continuation of Chrétien’s Perceval | Gerbert de Montreuil, c. 1230