"I wot not," said Sir Dinadan.
Said Sir Griflet, "Here have I brought Sir Dagonet, King Arthur's fool, that is the best fellow and the merriest in the world."
[Then said Sir Mordred,] "Put my shield and my harness upon Sir Dagonet, and let him set upon the Cornish knight."
"That shall be done," said Sir Dagonet, "by my faith."
Then anon was Dagonet armed in Mordred's harness and his shield, and he was set on a great horse and a spear in his hand.
"Now," said Dagonet, "show me the knight, and I trow I shall bear him down."
So all these knights rode to a woodside, and abode till King Mark came by the way. Then they put forth Sir Dagonet, and he came on all the while his horse might run, straight upon King Mark. And when he came nigh King Mark, he cried as he were wood, and said, "Keep thee, knight of Cornwall, for I will slay thee."
Anon as King Mark beheld his shield he said to himself, "Yonder is Sir Launcelot: alas, now am I destroyed."
And therewithal he made his horse to run as fast as it might through thick and thin. And ever Sir Dagonet followed King Mark crying and rating him as a wood man through a great forest. When Sir Uwaine and Sir Brandiles saw Dagonet so chase King Mark, they laughed all as they were wood. And then they took their horses and rode after to see how Sir Dagonet sped. For they would not for no good that Sir Dagonet were hurt, for King Arthur loved him passing well, and made him knight with his own hands.
When Sir Uwaine and Sir Brandiles with his fellows came to the court of King Arthur, they told the king, Sir Launcelot, and Sir Tristram how Sir Dagonet the fool chased King Mark through the forest. There was great laughing and jesting at King Mark and at Sir Dagonet.