Le Morte d'Arthur is a compilation by Sir Thomas Malory of Romance tales about the legendary King Arthur, Guinevere, Lancelot, and the Knights of the Round Table. Malory interprets existing French and English stories about these figures and adds original material. First published in 1485 by William Caxton, Le Morte d'Arthur is today perhaps the best-known work of Arthurian literature in English. Many modern Arthurian writers have used Malory as their principal source, including T. H. White in his popular "The Once and Future King" and Tennyson in "The Idylls of the King".