Marie Besnier Beauvalot
Net Worth: $5 Billion
Marie Besnier Beauvalot is a 37-year-old French billionaire heiress. She inherited a French dairy company called Lactalis. She and her two brothers own 100% of the company. They make Président brie cheese, which is what made the company big. The company is based in Laval, Mayenne, France where she resides.