Many books have been written about him. Most of them involve Merlin, the Knights of the Round Table, Morgan le Fay etc. Geoffrey of Monmouth wrote the first. Alfred, Lord Tennyson visited Tintagel, the mythical Camelot twice and wrote a series of poems about Arthur. One of the best-known books, "The Death of Arthur", was written by Sir Thomas Malory. Another tells how he set out to find the Holy Grail, the cup that Jesus drank from at the Last Supper. There are also many movies about him, including Disney's "The Sword in the Stone, Monty Python and the Holy Grail", King Arthur (2004), King Arthur, The Kid Who Would Be King (2019), and the Legend of the Sword (2017) and the musical "Camelot".