Book III - Chapter IV - How Sir Tor was known for son of King Pellinore, and how Gawaine was made knight.
SO on the morn King Pellinore came to the court of King Arthur, which had great joy of him, and told him of Tor, how he was his son, and how he had made him knight at the request of the cowherd. When Pellinore beheld Tor, he pleased him much. So the king made Gawaine knight, but Tor was the first he made at the feast. What is the cause, said King Arthur, that there be two places void in the sieges? Sir, said Merlin, there shall no man sit in those places but they that shall be of most worship. But in the Siege Perilous there shall no man sit therein but one, and if there be any so hardy to do it he shall be destroyed, and he that shall sit there shall have no fellow. And therewith Merlin took King Pellinore by the hand, and in the one hand next the two sieges and the Siege Perilous he said, in open audience, This is your place and best ye are worthy to sit therein of any that is here. Thereat sat Sir Gawaine in great envy and told Gaheris his brother, yonder knight is put to great worship, the which grieveth me sore, for he slew our father King Lot, therefore I will slay him, said Gawaine, with a sword that was sent me that is passing trenchant. Ye shall not so, said Gaheris, at this time, for at this time I am but a squire, and when I am made knight I will be avenged on him, and therefore, brother, it is best ye suffer till another time, that we may have him out of the court, for an we did so we should trouble this high feast. I will well, said Gawaine, as ye will.