9. Liliane Bettencourt & family

• Net Worth: $30 B                                                                       
• Source of Wealth: L'Oreal, inherited                                          
• Citizen: France 
• Age: 91

Liliane Henriette Charlotte Schueller, married name Bettencourt is a French heiress, socialite and businesswoman She is one of the principal shareholders of L’Oréal and, and as of March 2013 she was listed as the wealthiest woman in the world with an estimated net worth of US $30 billion.