His impressive clientele included members of British aristocracy, Audrey Hepburn, Jacqueline Bouvier Kennedy among other noted dignitaries. It was Givenchy who designed the iconic, sleeveless "little black dress" worn by the actress in the ageless film, Breakfast at Tiffany's (1961).
His longtime partner, the former haute couture designer Philippe Venet, announced his death through the Givenchy fashion house, saying he had died in his sleep on March 10.
Hubert de Givenchy, founder of the iconic fashion brand best known for dressing some of Hollywood's most famous women, has died at the age of 91. "Givenchy's lovely simple clothes [gave me] the feeling of being whoever I played", Hepburn said of their partnership.
The Givenchy name and influence endures.
Some of his most famous clients include U.S. First Lady Jaqueline Kennedy-who wore a Givenchy design to JFK's funeral-and Grace Kelly.
In a statement, The House of Givenchy said: "The House of Givenchy is sad to report the passing of its founder Hubert de Givenchy, a major personality of the world of French Haute Couture and a gentleman who symbolized Parisian chic and elegance for more than half a century. He will be greatly missed".
In the 1960s U.S. first lady Jacqueline Kennedy adopted the Givenchy look for her White House years, sticking to a uniform of shift dresses, pillbox hats and low-heeled pumps.
A protégé of Cristobal Balenciaga-whom he met at a Condé Nast party-Givenchy worked with some of fashion's greatest names, including Christian Dior and Pierre Balmain. After 36 years of founding the label, Givenchy sold it to LVHM but still remained involved in the creative designing till his retirement in 1995.
John Galliano, Alexander McQueen and Riccardo Tisci have all since served as creative directors of the label, with former Chloé designer Clare Waight Keller now helming the house.
He may be gone, but Givenchy's legacy will truly live on.