Leo Castelli, original name Leo Krauss, (Trieste 1907, New York 1999), is considered one of the most visionary and talented art dealers in art history, but he didn’t like the definition: he considered himself a gallerist. Castelli was brought up in a wealthy Jewish family in Trieste, that at the time was part of the Austro-Hungarian Empire. During the World War I the family moved to Wien, and when they moved back to Trieste, it had become part of Italy: that’s when they changed their last name to Castelli, Leo’s mother’s maiden name.