When the King of Northgalis saw that Sir Tristram had a fall, then he remembered him how great deeds of arms Sir Tristram had done. Then he made ready many knights, for the custom and cry was such, that what knight were smitten down, and might not be horsed again by his fellows, outher by his own strength, that as that day he should be prisoner unto the party that had smitten him down. So came in the King of Northgalis, and he rode straight unto Sir Tristram; and when he came nigh him he alighted down suddenly and betook Sir Tristram his horse, and said thus: Noble knight, I know thee not of what country that thou art, but for the noble deeds that thou hast done this day take there my horse, and let me do as well I may; for, as Jesu me help, thou art better worthy to have mine horse than I myself. Gramercy, said Sir Tristram, and if I may I shall quite you: look that ye go not far from us, and as I suppose, I shall win you another horse. And therewith Sir Tristram mounted upon his horse, and there he met with King Arthur, and he gave him such a buffet upon the helm with his sword that King Arthur had no power to keep his saddle.