40 years old and one of the granddaughters of Estee Lauder,
was recently given control of additional shares through family trusts - an now holds just under 20 million shares, worth $1.4 billion, which makes her the youngest female billionaire in the U.S., and one of the youngest in the world.
Jane Lauder sits on the company's board and has been working for The Estee Lauder Companies for years.
Older sister Aerin Lauder,
43, is the company’s style and image director, as well as chairman of her own brand Aerin. She holds at least 16 million shares, worth just about $1 billion.