... But when Sir Breunor beheld La Beale Isoud, him thought he saw never a fairer lady, and then he dread his lady's head should be off.  And so all the people that were there present gave judgment that La Beale Isoud was the fairer lady and the better made.  How now, said Sir Tristram, meseemeth it were pity that my lady should lose her head, but because thou and she of long time have used this wicked custom, and by you both have many good knights and ladies been destroyed, for that cause it were no loss to destroy you both.  So God me help, said Sir Breunor, for to say the sooth, thy lady is fairer than mine, and that me sore repenteth.  And so I hear the people privily say, for of all women I saw none so fair; and therefore, an thou wilt slay my lady, I doubt not but I shall slay thee and have thy lady.  Thou shalt win her, said Sir Tristram, as dear as ever knight won lady.  And by cause of thine own judgment, as thou wouldst have done to my lady if that she had been fouler, and because of the evil custom, give me thy lady, said Sir Tristram.  And therewithal Sir Tristram strode unto him and took his lady from him, and with an awk stroke he smote off her head clene.  Well, knight, said Sir Breunor, now hast thou done me a despite... (Le morte d'Arthur, Malory, 1910)