Léon Samoilovitch Bakst (10 May 1866 – 28 December 1924) was a Russian painter and scene- and costume designer. He was a member of the Sergei Diaghilev circle and the Ballets Russes, for which he designed exotic, richly coloured sets and costumes Born as Lev (Leib) Samoilovich Rosenberg , he was also known as Leon Nikolayevich Bakst