Bors  is the son of King Bors and nephew of King Ban of Benoic, both of whom are allies of Arthur in the early part of the cycle. He has a brother Lionel and his cousin is Lancelot.

Bors is one of the knights who undertake the Grail Quest and after several adventures which demonstrate their worthiness only three knights, Bors, Percival and Galahad achieve the Grail. Becoming Grail Knights and passing with the Holy Grail to the Grail Island.

Bors is the only one to return to Arthur' s court at Camelot with the full story of the Quest for the Holy Grail. 

Malory tells that Bors sided with Lancelot in the fallout between Arthur and Lancelot over Guinevere. Bors accompanies Lancelot in his exile from Arthur's court.

In Monty Python and the Holy Grail Bors, played by Terry Gilliam, is killed by the Killer Rabbit of CaerBannog.