Aerin Lauder – $3.7 billion
Just like Rockefeller, Lauder is also a name everyone knows quite well; Joseph and Estée Lauder are the powerhouse behind the cosmetics firm. As such, Aerin is a total fashion guru and that’s without taking fashion courses. Not only is she the brand family international ambassador, but she also owns her very own lifestyle brand called AERIN.

Aerin Lauder – 3.7 Billion
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