The British designer, 49, is exiting after just three years, according to WWD. Over the course of her tenure, she catapulted the French fashion house to the forefront of pop culture, thanks to her strong relationship with Meghan Markle.

Keller not only designed the Duchess of Sussex’s dress for her 2018 wedding to Prince Harry, but also dressed her on a regular basis for her royal duties.

Markle has been publicly supportive of Keller’s career, presenting her with the 2018 British Womenswear Designer of the Year award at the 2018 British Fashion Awards. Keller was later included in Time’s 100 Most Influential People list for 2019, with her work with Markle mentioned in the accompanying story.

Keller’s last Givenchy collection was shown at Paris Fashion Week in March. Due to her exit and the shutdown of factories as a result of the coronavirus pandemic, Givenchy has canceled its women’s pre-spring collection and will not produce a fall 2020 couture collection.

Clare Waight Keller was the first woman to lead Givenchy since the fashion house was established in 1952. While Markle has certainly served as an unofficial ambassador of the brand, Ariana Grande was recently named an official face, and starred in a “Breakfast at Tiffany’s-themed ad campaign.

Other celebrity fans of Keller’s work include Julianne Moore, Julia Roberts, Rooney Mara, Gal Gadot and more.

Now that Markle has stepped out of the royal spotlight, perhaps she and Keller will continue their collaboration as the pair start the next phase of their professional lives.