Born in Manhattan to wealthy refugee parents who had fled the Spanish Civil War, he lived an early privileged life travelling and flitting between jobs.
He founded the model agency in Paris in 1972, challenging the then dominant Ford agency not just to represent the world's most beautiful women but also espousing a champagne lifestyle for his charges which was starkly at odds with the prevailing business ethos.
The entrepreneur ended up being sued by Ford and winning - earning yet more notoriety. At its height Elite generated $100m a year in bookings fees. The success and arrogance of the age was encapsulated in 1990 when Evangelista famously declared: "We don't wake up for less than $10,000 a day."
Although he was later to regret it, Casablancas encouraged the women to become celebrities in their own right. He persuaded Cindy Crawford to pose for Playboy, a career move which turned her into the world's highest-paid model in 1995, earning $6.5m. His private life was equally colourful. In the 1980s, a relationship with the then 16-year-old Stephanie Seymour ended in the break-up of his second marriage. Looking back on his career in 2010 he said: "I had the understanding of a guy who loved beautiful women and above all who liked the sensuality of it all. All of the other agents were either women or gay guys. They had their own approach, which in certain instances was probably superior to mine, but I had something I thought was unique. I looked at my models as women."
Casablancas had been receiving treatment for cancer in Brazil, where he spent much of his later life.
- INDEPENDENT