John Wayne, who died on June 11 1979 aged 72, made 162 feature films, was one of the 20th-century's biggest Hollywood stars. Here are 10 things we learned about the Oscar-winning actor from an impressive biography by Scott Eyman.

John Wayne cheated at chess

John Wayne was actually very good at chess (film director and experienced player Josef von Sternberg "was livid" when beaten by Wayne) and the actor had a chessboard permanently set up on his 136ft boat, The Wild Goose. Wayne once said of fellow actor Rock Hudson: "Who the hell cares if he's queer? The man plays great chess." Wayne repeatedly cheated when playing chess against Robert Mitchum (Wayne had huge hands and would carefully slide a piece into a different position as he made a separate move) and Mitchum eventually plucked up the courage to tell him he was cheating. Wayne replied "I was wondering when you were going to say something. Set 'em up, we'll play again."

He loved literature

Wayne liked the novels of Agatha Christie but his two favourite books were written by Arthur Conan Doyle and both are historical novels – The White Company (1891) and Sir Nigel (1906) – both set during the Hundred Years' War. Wayne was also a fan of Charles Dickens and if the actor agreed to a business deal, he would always say "Barkis is willing!", a phrase used by Mr Barkis when he tells David Copperfield that he is ready to marry Peggotty.

Just call him 'Mmm' or Duke but never Marion

Wayne was born Marion Robert Morrison (on May 26, 1907) and earned the lifelong nickname Duke, after Big Duke, the family dog. Big Duke, an Airedale, would chase fire engines, and the firemen christened Wayne Liitle Duke, which was shortened to Duke. Wayne said: "The guy you see on the screen isn't really me. I'm Duke Morrison, and I never was and never will be a film personality like John Wayne. I know him well. I'm one if his closest students. I have to be. I make a living out of him."