Then he required him on his knighthood to go with him, and they rode together to the castle. As soon as they were near, two knights came out and ran full speed against them; but both of them they overthrew, and went within the castle, and had noble cheer. Now, when they were unarmed and ready to take rest, there came to the castle-gate two knights, Sir Palomedes and Sir Gaheris, and desired the custom of the castle. "I would far rather rest than fight," said Sir Dinadan. "That may not be," replied Sir Tristram, "for we must needs defend the custom of the castle, seeing we have overcome its lords; therefore, make ready." "Alas that I ever came into your company," said Sir Dinadan. So they made ready, and Sir Gaheris encountered Sir Tristram and fell before him; but Sir Palomedes overthrew Sir Dinadan. Then would all fight on foot save Sir Dinadan, for he was sorely bruised and frighted by his fall. And when Sir Tristram prayed him to fight, "I will not," answered he, "for I was wounded by those thirty knights with whom we fought this morning; and as to you, ye are in truth like one gone mad, and who would cast himself away! There be but two knights in the world so mad, and the other is Sir Lancelot, with whom I once rode forth, who kept me evermore at battling so that for a quarter of a year thereafter I lay in my bed. Heaven defend me again from either of your fellowships!" "Well," said Sir Tristram, "if it must be, I will fight them both." Therewith he drew his sword and assailed Sir Palomedes and Sir Gaheris together; but Sir Palomedes said, "Nay, but it is a shame for two to fight with one." So he bade Sir Gaheris stand by, and he and Sir Tristram fought long together; but in the end Sir Tristram drave him backward, whereat Sir Gaheris and Sir Dinadan with one accord sundered them. Then Sir Tristram prayed the two knights to lodge there; but Sir Dinadan departed and rode away into a priory hard by, and there he lodged that night. And on the morrow came Sir Tristram to the priory to find him, and seeing him so weary that he could not ride, he left him, and departed. At that same priory was lodged Sir Pellinore, who asked Sir Dinadan Sir Tristram's name, but could not learn it, for Sir Tristram had charged that he should remain unknown. Then said Sir Pellinore, "Since ye will not tell it me, I will ride after him and find it myself." "Beware, Sir knight," said Sir Dinadan, "ye will repent it if ye follow him." But Sir Pellinore straightway mounted and overtook him, and cried to him to joust; whereat Sir Tristram forthwith turned and smote him down, and wounded him full sorely in the shoulder.