Book XIX - Chapter VIII - How Sir Launcelot was delivered out of prison by a lady, and took a white courser and came for to keep his day
SO leave we Sir Launcelot lying within that cave in great pain; and every day there came a lady and brought him his meat and his drink, and wooed him, to have lain by him; and ever the noble knight, Sir Launcelot, said her nay. Sir Launcelot, said she, ye are not wise, for ye may never out of this prison, but if ye have my help; and also your lady, Queen Guenever, shall be brent in your default, unless that ye be there at the day of battle. God defend, said Sir Launcelot, that she should be brent in my default; and if it be so, said Sir Launcelot, that I may not be there, it shall be well understanded, both at the king and at the queen, and with all men of worship, that I am dead, sick, outher in prison. For all men that know me will say for me that I am in some evil case an I be not there that day; and well I wot there is some good knight either of my blood, or some other that loveth me, that will take my quarrel in hand; and therefore, said Sir Launcelot, wit ye well ye shall not fear me; and if there were no more women in all this land but ye, I will not have ado with you. Then art thou shamed, said the lady, and destroyed for ever. As for world's shame, Jesu defend me, and as for my distress, it is welcome whatsoever it be that God sendeth me.
So she came to him the same day that the battle should be, and said: Sir Launcelot, methinketh ye are too hard-hearted, but wouldest thou but kiss me once I should deliver thee, and thine armour, and the best horse that is within Sir Meliagrance's stable. As for to kiss you, said Sir Launcelot, I may do that and lose no worship; and wit ye well an I understood there were any disworship for to kiss you I would not do it. Then he kissed her, and then she gat him, and brought him to his armour. And when he was armed, she brought him to a stable, where stood twelve good coursers, and bade him choose the best. Then Sir Launcelot looked upon a white courser the which liked him best; and anon he commanded the keepers fast to saddle him with the best saddle of war that there was; and so it was done as he bade. Then gat he his spear in his hand, and his sword by his side, and commended the lady unto God, and said: Lady, for this good deed I shall do you service if ever it be in my power.