A Knight of the Round Table who Arthur sent, with Gawain, to the court of the King of the Isles. Gawain and Hunbaut were supposed to demand the king’s submission to Arthur.
After delivering their message, they fled the king’s court. On the return trip, Hunbaut became separated from Gawain. He rescued a knight from a pack of robbers before returning to Arthur’s court.
Source
Hunbaut | 13th century