Then they fought, but at the first stroke Sir Malgrace fell to the earth.

"Mercy!" he cried, "I yield to you, Sir Knight. Do not slay me. I put myself in the king's hands and yours."

Sir Lancelot was much vexed. He wanted to kill Sir Malgrace for his treachery, and yet, since the man had asked for mercy, he could not. So he said:

"What, coward, would you stop already? Shame upon you! Get up and fight."

"I shall not rise unless you take me as one who has yielded," answered the knight.

Then Sir Lancelot said:

"Traitor, I make you this offer: I will take off my helmet, unarm my left side, and tie my left hand behind my back. In that way I will fight with you."

Upon hearing this, Sir Malgrace rose to his feet, sure now of killing Sir Lancelot.

"My lord King," cried Sir Malgrace, "you have heard this offer. I accept."

The king was very sorry that Sir Lancelot had made the offer. However, it was impossible to withdraw it. A squire came and disarmed Sir Lancelot, so that his head and left side were without cover; and since he had only one arm to fight with, he could not use his shield.