Book X - Chapter XXXII - How King Mark slew by treason his brother Boudwin, for good service that he had done to him.
NOW turn we to another matter that fell between King Mark and his brother, that was called the good Prince Boudwin, that all the people of the country loved passing well. So it befell on a time that the miscreant Saracens landed in the country of Cornwall soon after these Sessoins were gone. And then the good Prince Boudwin, at the landing, he raised the country privily and hastily. And or it were day he let put wildfire in three of his own ships, and suddenly he pulled up the sail, and with the wind he made those ships to be driven among the navy of the Saracens. And to make short tale, those three ships set on fire all the ships, that none were saved. And at point of the day the good Prince Boudwin with all his fellowship set on the miscreants with shouts and cries, and slew to the number of forty thousand, and left none alive.
When King Mark wist this he was wonderly wroth that his brother should win such worship. And because this prince was better beloved than he in all that country, and that also Boudwin loved well Sir Tristram, therefore he thought to slay him. And thus, hastily, as a man out of his wit, he sent for Prince Boudwin and Anglides his wife, and bade them bring their young son with them, that he might see him. All this he did to the intent to slay the child as well as his father, for he was the falsest traitor that ever was born. Alas, for his goodness and for his good deeds this gentle Prince Boudwin was slain. So when he came with his wife Anglides, the king made them fair semblant till they had dined. And when they had dined King Mark sent for his brother and said thus: Brother, how sped you when the miscreants arrived by you? meseemeth it had been your part to have sent me word, that I might have been at that journey, for it had been reason that I had had the honour and not you. Sir, said the Prince Boudwin, it was so that an I had tarried till that I had sent for you those miscreants had destroyed my country. Thou liest, false traitor, said King Mark, for thou art ever about for to win worship from me, and put me to dishonour, and thou cherishest that I hate. And therewith he struck him to the heart with a dagger, that he never after spake word. Then the Lady Anglides made great dole, and swooned, for she saw her lord slain afore her face. Then was there no more to do but Prince Boudwin was despoiled and brought to burial. But Anglides privily gat her husband's doublet and his shirt, and that she kept secretly.
Then was there much sorrow and crying, and great dole made Sir Tristram, Sir Dinas, Sir Fergus, and so did all knights that were there; for that prince was passingly well beloved. So La Beale Isoud sent unto Anglides, the Prince Boudwin's wife, and bade her avoid lightly or else her young son, Alisander le Orphelin, should be slain When she heard this, she took her horse and her child; and rode with such poor men as durst ride with her.