Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In Arthurian legend, Sir Kay is Sir Ector''s son and King Arthur''s foster brother and later seneschal, as well as one of the first Knights of the Round Table. In later literature he is known for his acid tongue and bullying, boorish behavior, but in earlier accounts he was one of Arthur''s premier warriors. Along with Bedivere, with whom he is frequently associated, Kay is one of the earliest characters associated with Arthur. Kay is ubiquitous in Arthurian literature but he rarely serves as anything but a foil for other characters. Though he manipulates the king to get his way, his loyalty to Arthur is usually unquestioned. In the Vulgate Cycle, the Post-Vulgate and Thomas Malory''s Le Morte d''Arthur, Kay''s father Ector adopts the infant Arthur after Merlin takes him away from his birth parents, Uther and Igraine.