21 Richest Billionaires In The World

9. Liliane Bettencourt

Facebook CEO Mark Zuckerberg talks about the new Facebook email service at an announcement in San Francisco, Monday, Nov. 15, 2010. AP Photo/Paul Sakuma)
Jacques Brinon/AP

Rating: $37.8Billion

The notoriously media-shy heiress and socialite is one of the chief shareholders of global brand L'Oreal and up until 2012 owned her own £60m island in the Seychelles.

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