Arturo Umberto Samuele Schwarz (2 February 1924 – 23 June 2021) was an Italian scholar, art historian, poet, writer, lecturer, art consultant and curator of international art exhibitions. He lived in Milan, where he amassed a large collection of Dada and Surrealist art, including many works by personal friends such as Marcel Duchamp, André Breton, Man Ray, and Jean Arp. Source: Wikipedia (en)