Red Knight (The), sir Perimones, one of the four brothers who kept the passages leading to Castle Perilous.  In the allegory of Gareth, this knight represents noon, and was the third brother.  Night, the eldest born, was slain by sir Gareth; the Green Knight, which represents the young day-spring, was overcome, but not slain; and the Red Knight, being overcome, was spared also.  The reason is this:  darkness is slain, but dawn is only overcome by the stronger light of noon, and noon decays into the evening twilight.  Tennyson, in his Gareth and Lynette, calls sir Perimones "Meridies" or "Noonday Sun."  The Latin name is not consistent with a British tale.—Sir T. Malory, History of Prince Arthur, i. 129 (1470); Tennyson, Idylls. (The Reader's Handbook of Allusions, &c., Brewer, 1889)