The world’s oldest billionaire, David Rockefeller Sr, has died at the age of 101 on 20th March due to congestive heart failure. Rockefeller, who controlled Chase Manhattan bank (now JPMorgan Chase) for more than a decade, had an estimated net worth of $3.3 billion. Rockefeller was the grandson of Standard Oil Co-founder John D Rockefeller, America’s first billionaire.