Had a two-year relationship with actor William Holden, who was married at the time.
Her French bourgeois family wanted her to become a school teacher. When she balked at that, they suggested she work in a bank.
She was a longtime friend of Audrey Hepburn, the two having met while modeling in Paris in the late 1940s. A manic-depressive, Capucine's life had on several occasions been saved by her friend (both women lived at the time in Switzerland) after repeated suicide attempts.
When she committed suicide in March 1990 at the age of 62, her obituary in the New York Times stated that her only known survivors were her three cats.
Considered one of the great beauties of Europe.