Book X - Chapter XXXI - How at a great feast that King Mark made an harper came and sang the lay that Dinadan had made.
NOW will we pass of this matter, and speak we of the harpers that Sir Launcelot and Sir Dinadan had sent into Cornwall. And at the great feast that King Mark made for joy that the Sessoins were put out of his country, then came Eliot the harper with the lay that Dinadan had made and secretly brought it unto Sir Tristram, and told him the lay that Dinadan had made by King Mark. And when Sir Tristram heard it, he said: O Lord Jesu, that Dinadan can make wonderly well and ill, thereas it shall be. Sir, said Eliot, dare I sing this song afore King Mark? Yea, on my peril, said Sir Tristram, for I shall be thy warrant. Then at the meat came in Eliot the harper, and because he was a curious harper men heard him sing the same lay that Dinadan had made, the which spake the most villainy by King Mark of his treason that ever man heard.
When the harper had sung his song to the end King Mark was wonderly wroth, and said: Thou harper, how durst thou be so bold on thy head to sing this song afore me. Sir, said Eliot, wit you well I am a minstrel, and I must do as I am commanded of these lords that I bear the arms of. And sir, wit ye well that Sir Dinadan, a knight of the Table Round, made this song, and made me to sing it afore you. Thou sayest well, said King Mark, and because thou art a minstrel thou shalt go quit, but I charge thee hie thee fast out of my sight. So the harper departed and went to Sir Tristram, and told him how he had sped. Then Sir Tristram let make letters as goodly as he could to Launcelot and to Sir Dinadan. And so he let conduct the harper out of the country. But to say that King Mark was wonderly wroth, he was, for he deemed that the lay that was sung afore him was made by Sir Tristram's counsel, wherefore he thought to slay him and all his well-willers in that country.