When Dinadan saw this, he must needs joust with him for shame.

And so Dinadan and he encountered together, that with pure strength Sir Dinadan smote him over his horse's tail Then he took his horse and fled, for he was on foot one of the valiantest knights in Arthur's days, and a great destroyer of all good knights.
Then rode Sir Dinadan unto Sir Mordred and unto Sir Agravaine.

Sir knight, said they all, well have ye done, and well have ye revenged us, wherefore we pray you tell us your name.

Fair sirs, ye ought to know my name, the which is called Sir Dinadan.

When they understood that it was Dinadan they were more wroth than they were before, for they hated him out of measure because of Sir Lamorak.