Sir Brunor le Noir
Different spellings of the name ascribed to a number of different figures in the Arthurian tale are Brunor, Breunor, Branor, or Brunero. They include the father of Galehaut, another former member of Uther's old Round Table, and the Knight of the Round Table known as Brunner/Breunor le Noir (the Black).
One of the three sons of Sir Brunor Senior, well known as the Good Knight without Fear, was Sir Brunor. He was angry with the Knight of the Lake shortly after his father was killed and his brother was hacked by Sir Lancelot. So, wearing a coat made of his father's corpse, he set out on his trek to Camelot. Even though it was an uncomfortable fit, Sir Brunor vowed to wear it until he had exacted his retribution.
Sir Kay exclaimed, "La Cote Mal Tailliee," or the Knight of the Ill-Fitting Coat, as he entered the Royal court. He was made fun of, which hurt his chances of receiving a knighthood from the King. And that's what occurred. He was turned down and departed the location out of spite. The only time Sir Gawain was called back was after he argued. Unfortunately, he and the other knights suffered yet another defeat.
Since then, he has been on many adventures before being knighted.