Christian Dior Couture is mourning the death of Mathilde Favier, the fashion house’s director of public relations, who was killed in a car accident in western France at the age of 57.
Favier died alongside her partner, French film producer Nicolas Altmayer, 61, in the fatal collision.
Reports said their vehicle crashed into a heavy goods vehicle while they were attempting to overtake another car.
The tragedy has prompted an outpouring of grief from colleagues and friends who knew Favier as one of the most influential figures behind Dior’s public image.
Fashion House Pays Tribute to ‘Exceptional’ Executive
Dior announced Favier’s death on Tuesday, describing her as an “exceptional woman” whose career had made a lasting contribution to the luxury brand.
“Dior is deeply saddened to announce the accidental death of Mathilde Favier,” the fashion house said in a statement.
The company praised her commitment, elegance, communication skills and loyalty, adding that her “communicative joy” and talent had helped strengthen the reputation of Christian Dior Couture.
Delphine Arnault Mourns a Close Friend
Dior chief executive Delphine Arnault also paid an emotional tribute to Favier, remembering her not only as a highly respected professional but as a loyal friend.
“Mathilde loved life with a passion,” Arnault said.
“With the passing of Mathilde, Dior is losing an incredible professional, and I have lost a loyal friend.”
Arnault also praised Favier’s optimism and courage, saying she would be deeply missed for her warmth, smile and talent.
Her thoughts, she added, were with Favier’s children, mother, sisters, wider family, friends and the Dior team she cared for deeply.
A Long Career at the Heart of Luxury Fashion
Favier had spent more than 13 years at Dior, becoming a prominent figure within the fashion industry and helping shape the brand’s relationships with celebrities, media figures and influential personalities.
Before joining Dior, she worked at Glamour magazine and Prada, building a career that placed her at the centre of international fashion and luxury communications.
Her work frequently brought her into contact with some of the biggest names in entertainment and fashion, while her personal style also became part of her public identity.
Favier’s Family and Personal Life
Favier was the mother of two children, Héloïse Agostinelli, 27, and Carlo Agostinelli, 25, from her first marriage to businessman Robert Agostinelli, chairman and co-founder of private equity firm Rhône Group.
She later married Antoine Meyer.
Following their separation, she found love with Altmayer, a respected figure in the French film industry.
Altmayer had established himself as a prominent producer and was credited with working on more than 80 films during his career.
Her Philosophy on Style and Refinement
Beyond her professional achievements, Favier was known for her distinctive approach to fashion, entertaining and everyday elegance.
In a 2024 interview with The Times, she explained that her sense of refinement came from making deliberate choices and surrounding herself with things that felt distinctive and carefully considered.
She said she would never put a plastic bottle on a dining table and maintained that even an ordinary meal deserved an attractive setting.
Favier attributed that instinct to her upbringing, recalling how her mother would take small steps to make everyday things look more polished, from removing butter from its wrapper to taking price tags off purchases.
‘Refinement Has Nothing to Do With Money’
Favier argued that elegance was not necessarily connected to wealth.
She described refinement as a mixture of freshness and taste, rejecting the idea that European glamour simply happened without effort.
“It’s never effortless,” she said, explaining that people who appear naturally stylish often make conscious choices behind the scenes.
Her comments offered a glimpse into the philosophy that had accompanied her throughout her career — one built around discipline, attention to detail and an appreciation for beauty in everyday life.
A Sudden Loss for Fashion and Film
The deaths of Favier and Altmayer have brought together two worlds in which they had made significant marks: international luxury fashion and French cinema.
For Dior, Favier’s death represents the loss of a senior executive who played a central role in communicating the identity of one of the world’s most recognisable fashion houses.
For those closest to her, however, the tragedy marks the loss of a mother, partner, friend and colleague whose personality was remembered as warmly as her professional accomplishments.
