How Sir Tristram jousted, and smote down King Arthur, because he told him not the cause why he bare that shield. AND if so be ye can descrive what ye bear, ye are worthy to bear the arms. As for that, said Sir Tristram, I will answer you; this shield was given me, not desired, of Queen Morgan le Fay; and as for me, I can not descrive these arms, for it is no point of my charge, and yet I trust to God to bear them with worship. Truly, said King Arthur, ye ought not to bear none arms but if ye wist what ye bear: but I pray you tell me your name. To what intent? said Sir Tristram. For I would wit, said Arthur. Sir, ye shall not wit as at this time. Then shall ye and I do battle together, said King Arthur.