Le Morte d'Arthur is a story about King Arthur and the Knights of the Round Table written by Sir Thomas Malory in the 15th century. It details Arthur's conception and birth and concludes with his death at the hands of his nephew Mordred. The characters were well known in English literature through earlier French stories. The story explores themes of conflict, betrayal, and the ideal of chivalry through the love triangle of Arthur, Guinevere and Lancelot and the disunity it sows. In the end, Arthur is killed by Mordred while fighting to reclaim his lands, bringing an end to his reign.