Isak Andic, who built the fashion brand Mango from a Spanish storefront into a global giant with more than 2,000 stores on five continents, died in a fall while hiking near Barcelona on Saturday. He was 71.

The death was announced by Toni Ruiz, the chief executive of Mango. The cause was confirmed by Glòria Torrent Caldas, a spokeswoman for the company.

Mr. Andic, bespectacled and seen as relatively reclusive, started Mango in the mid-1980s by selling T-shirts in Barcelona. Over four decades, Mango grew into one of Spain’s leading international retailers, known for its creative, eclectic and ever-changing selection of affordable women’s wear.

Mr. Andic, who held the title of nonexecutive chairman at Mango, had a net worth of about $4.5 billion at his death, according to Forbes magazine.

Mango expanded beyond Spain in 1992 and opened its first U.S. location, in Los Angeles, in 2006. By 2008, it had launched a menswear line and opened an 8,000-square-foot store in the SoHo section of Manhattan. It held its first fashion show outside Spain in 2011.

Mango’s success, in part based on a nimble approach that involved frequently replacing its merchandise, led to its growth in more than 100 markets. Over the years, it has received some scrutiny for safety lapses along its supply chain.

This year, Mango expanded its footprint in the United States, opening locations for the first time in Pennsylvania and in Washington, D.C. The company, which competes with fast fashion chains such as the Swedish-based H&M and the Spanish-based Zara, plans to have 40 American stores at year’s end, up from 10 in 2022.

Spain’s prime minister, Pedro Sánchez, was among the country’s leaders who paid tribute to Mr. Andic.

Isak Andic Ermay was born in 1953 in Istanbul. He moved with his family to Barcelona as a teenager and worked in the wholesale and retail sectors before opening Mango.

Jonathan Andiclucky cola, his son, is an executive board member at Mango. Complete information on survivors was not immediately available.

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