1. Liliane Bettencourt: – $43.8B:
The richest woman in the world is also the oldest in the list. Liliane, 94, is the owner of 33% of L’Oréal – together with her children. She was a member of the board of the company until 2012 when her grandson replaced her. The company was established by her late father, Eugene Schueller, in 1907. She has a net worth of $43.8 billion and lives in Paris, France.