Iris Fontbona inherited Antofagasta Plc, a company owned by Andronoico Luksic. With this company Iris owns copper mines in Chile as well as a large amount of shares of the company that are being traded on the London Stock Exchange. Because of that, Iris is estimated to be worth $13.5 billion.
Anne Cox Chambers
Credit: The Business Journals
One of the oldest billionaires on this list is Anne Cox Chambers, and like most on this list, her wealth stems from the success of someone else. In this case, her $17 billion US worth is thanks to her father who was a publisher of newspapers, communications entrepreneurs as well as an online car salesman.
