She doesn’t design clothes, but she connects Dior with stars all over the world: get to know Mathilde Favier

She was never the one at the center of the runway, yet she may have been the first person every star met when they entered Dior’s world.

Mathilde Favier, Christian Dior Couture’s head of public relations, died in a traffic accident in France on August 17, 2026, at age 57. After the news broke, Dior CEO Delphine Arnault, LVMH chairman Bernard Arnault, and current creative director Jonathan Anderson were among those who publicly paid tribute to her.

For those unfamiliar with the fashion industry, a head of public relations may not be as memorable as a creative director. Yet at Dior, Mathilde Favier was responsible for one of the brand’s most important and hardest-to-measure assets: relationships. Why do celebrities choose to wear Dior? How do brand ambassadors build lasting ties with the Maison? Behind the hugs, photos, and reunions that seem to happen naturally at shows, she was often there.

She didn’t design clothes, yet she stood between Dior and its stars

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Mathilde Favier was born into a family with deep ties to Paris’s creative circles. Her half-sister, Victoire de Castellane, is Dior’s creative director of high jewelry, while her uncle, Gilles Dufour, worked with Karl Lagerfeld for many years. Through her uncle’s introduction, she interned at Chanel when she was young and later worked as a fashion editor at Glamour.

Prada was what truly led her into public relations. Around 2001, she joined Miuccia Prada’s team, where she handled brand communications for years and helped establish Miu Miu’s PR operations in France. In all, she worked for the Prada Group for about 11 years.

She joined Dior in 2011. Over the following decade, she became one of the key figures in Christian Dior Couture’s public relations and global celebrity relations. Her work with brand ambassadors, Hollywood actors, and musicians went beyond arranging front-row seats; she helped build lasting, trusting relationships between the brand and the people it worked with.

Great PR isn’t about knowing lots of celebrities. It’s about earning their trust.

images from/getty images

Mathilde Favier’s network spanned nearly the entire Paris cultural scene. Sofia Coppola, Charlize Theron, Natalie Portman, and Michelle Yeoh were among the celebrities with whom she built lasting relationships for Dior. Rizzoli described her as having an influential circle of friends across fashion, art, design, food, and culture.

Yet the moments that best represented her were often not official PR photos, but brief moments before a fashion show. Whenever a brand ambassador arrived, she would often greet them in person, take them by the hand, and lead them inside, making a highly commercial brand partnership feel closer to a genuine personal relationship.

Her years of interactions with Jisoo, in particular, drew attention from Asian fans. From the early days of Jisoo’s partnership with Dior, Mathilde often welcomed her at shows. The two also celebrated birthdays together and took many photos in private. After Mathilde’s passing, Jisoo shared a lengthy public tribute, recalling that Mathilde had been by her side with warmth and kindness from the beginning of her journey with Dior.

This may explain why she was so hard to replace. A brand can rearrange a seating chart or rebuild a contact list, but the trust, understanding, and affection someone builds over more than a decade cannot be handed over immediately simply by changing a job title.

Beyond the runway, she embodied “Parisian life”

images from/getty images

Mathilde Favier’s influence extended beyond Dior. She loved fashion, food, art, interior design, flowers, and life in Paris, and was even described as one of Paris’s best-connected women. Her Paris home was similarly filled with bold patterns, artworks, and collections, completely unlike the cool, minimalist image people might associate with a fashion executive.

In 2024, she published Living Beautifully in Paris with Frédérique Dedet, bringing together her longtime favorite Paris addresses, artists, designers, restaurants, and friends in one book. The publisher described her as more than Dior Couture’s head of public relations: someone who brought together Parisian fashion, culture, food, and the art of living.

For this reason, Jonathan Anderson’s tribute after her death was especially memorable. Rather than speaking only of Mathilde’s role, he described her warmth, energy, and powerful positivity, saying that in many ways she embodied the spirit of Couture itself. Delphine Arnault also said that Dior had lost more than an outstanding professional, while she herself had lost a longtime friend.

Mathilde Favier never designed a Dior collection or walked the runway for a final bow, yet she took part in the brand’s history in another way. Whenever a star entered a show, a professional collaboration became a lasting relationship, or Dior became more than clothing and instead a world with human warmth, she was there.

Some people create clothes, while others connect those clothes with the world. Mathilde Favier belonged to the latter, which is why the fashion world felt the void she left behind so clearly after her sudden passing.

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