Thomas, Sir Malory 
The Boy’s King Arthur [EPUB ebook] 
Sir Thomas Malory’s History of King Arthur and His Knights of the Round Table

This explores the English folklore surrounding King Arthur and his knights. There are many Arthurian legends. Here one can read about Sir Launcelot du Lake, Sir Tristram, Sir Galahad and Sir Percival, the Quest of the Holy Grail and the Death of Arthur.