World's oldest billionaire is 101 years old: Hurun Rich List
According to Hurun's Global Rich List 2017 published on Tuesday, David Rockefeller Sr is the oldest billionaire in the world at the age of 101. The former CEO of Chase National Bank (now JPMorgan Chase) has an estimated net worth of $1.5 billion as per Hurun. He is the only living grandchild of America's first billionaire, John D Rockefeller.