Two entries with the name Brunor the Black.
Brunor the Black
The true name of the Good Knight Without Fear, who was the father of Brunor the Black (below) and Dinadan.
Source
Palamedes | c. 1240
Brunor the Black
Breunor Le Noir, Breunor the Black, Brewnor, Bruin Le Noire
The real name of the Knight of the Ill-Fitting Coat (La Cote Maile Taile), first given in the Prose Tristan and Palamedes.
He was a Knight of the Round Table, the son of the Good Knight Without Fear (above), and the brother of Dinadan and Daniel. Lancelot, who had killed Daniel, is his mortal enemy in La Tavola Ritonda, but he undertakes a quest with Lancelot in the Prose Tristan and in Malory.
Sources
Palamedes | c. 1240
Prose Tristan | 1230-1240
La Tavola Ritonda | 1325-1350
Le Morte Darthur | Sir Thomas Malory, 1469-1470