Ernst Beyeler

Ernst Beyeler (16 July 1921 – 25 February 2010) was a Swiss art dealer and collector, who became "Europe’s pre-eminent dealer in modern art", according to ''The New York Times'', and "the greatest art dealer since the war", according to ''The Daily Telegraph''. In 1982, he and his wife founded the Beyeler Foundation to show his private collection, which on his death was valued at US$1.85 billion. Provided by Wikipedia