The first woman with a $100 billion fortune is L'Oréal heir.

The heir to the L'Oréal beauty empire is worth over $100 billion. L'Oréal's stock is up more than 30% year-to-date after hitting a record high on Thursday. On Thursday, her net worth reached $100.1 billion, thanks to a rise in L'Oréal S.A. stock. She and her family are the largest shareholders in the company founded by her grandfather in 1909. The family dispute over her inheritance was one of the reasons BettencourtMeyers was the world's richest woman. She is the author of two books, a genealogy of Greek gods and a five-volume study of the Bible. Even though she is the 12th richest person in the world with a fortune of $100 billion, she is still behind Bernard Arnault. The world's second-richest person is the founder of LVMH Mot Hennessy Louis Vuitton, Bernard Arnault, with a net worth of $179 billion.