Net worth: $76.6 billion. Bettencourt Meyers inherited wealth from her grandfather, Eugène Schueller, the founder of L'Oréal
Net worth: $60.2 billion. Koch inherited wealth from her late husband, David Koch, co-founder of Koch Industries, one of the largest private companies in the United States
Net worth: $60.2 billion. Koch inherited wealth from her late husband, David Koch, co-founder of Koch Industries, one of the largest private companies in the United States
Net worth: $40.9 billion. Fontbona inherited wealth from her late husband, Andrónico Luksic, a Chilean businessman who built a fortune in mining and other industries
Net worth: $37.9 billion. Fissolo inherited wealth from her late husband, Michele Ferrero, the founder of Ferrero, an Italian chocolate company known for Nutella and Kinder