Net worth: $6 billion
Country: Switzerland
Source of wealth: Commodities
Overall Forbes rank: 198
Technically, Ms. Louis-Dreyfus inherited her initial fortune from her late husband Robert in 2009. But this is her first time on the billionaires list, thanks to rising commodity prices and moves she has made as chairman of the French commodities giant Louis Dreyfus and Louis Dreyfus SAS. She sold the company’s energy trading interests and raised capital on public markets for the first time in the company’s history.
Fun fact: American Actress Julia Louis-Dreyfus is a first cousin once removed.