You. Francois Bettencourt has become the first female billionaire hear about it at urban legends and stranger truths. L'Oreal heiress Francois Bettencourt Myers has become the first woman to amass $100 billion in fortune that, according to the rankings of the richest people in the world. The french beauty empire, founded by her grandfather, is on track for its best stock market performance in decades. L'Oreal shares rose to a record high in Paris on Thursday