#305 David Rockefeller Sr

Descendant of one of the greatest capitalists in American history is worth $700 million less than he was last fall due to losses suffered by his stock and real estate portfolio. Claims world-class art collection—including Monet, Matisse and Renoir works—has largely retained its value. Grandfather turned $4,000 in oil refining into Standard Oil, oil and gas giant that fueled American industrial revolution. Company broken up in landmark antitrust case 1911; much of Standard Oil lives on as ExxonMobil. At annual meeting last year Rockefeller family members demanded ExxonMobil adopt greener measures. Bequeathed $100 million to alma mater Harvard to fund study abroad and arts programs; largest ever alumnus donation. Nonagenarian visited 10 countries last year.