He may be the sixth-richest person in the world, but few people know his name. Amancio Ortega is the Spanish billionaire behind Inditex, the world's largest clothing retailer that owns Zara, Pull&Bear, Bershka, Massimo Dutti, and Stradivarius, and other brands.

Ortega is worth an estimated $62.7 billion , according to Forbes.

The mysterious Zara founderwas briefly the world's richest man back in 2015, Forbes reported. He bypassed the then-richest person, Bill Gates, when his net worth peaked to $80 billion as Zara's parent company Inditex's stock peaked.

But when the stock went back down, Ortega went back to being the world's second-richest man , a title he gained in June 2015.

Read more : We went inside one of the sprawling factories where Zara makes its clothes. Here's how the world's biggest fashion retailer gets it done.

Despite Ortega's impressive net worth, many people have never heard of him. The 82-year-old Spaniard fiercely guards his privacy and gives few interviews to the press.

Ortega founded fast-fashion giant Zara with his then-wife Rosalia in 1975. Today, his retail company Inditex SA which owns eight brands including Zara, Massimo Dutti, and Pull&Bear has more than 7,500 stores around the world.

Ortega is surpassed in wealth by only five people: Jeff Bezos , Bill Gates , Warren Buffett , Bernard Arnault , and Carlos Slim Helu . But Bloomberg's data notes that since last year, Gates' net worth has decreased by $1.1 billion, while Ortega's has increased by an impressive $10.4 billion.

Ashley Lutz and Mallory Schlossberg contributed to an earlier version of this story.

See the rest of the story at Business Insider

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