Alizée Thevenet, sister-in-law to the Princess of Wales, showcased a glamorous style at the inaugural Longchamp Art Festival in Paris. The event, held in the Marais district, preceded the exhibition's opening.

Thevenet, 36, arrived on Thursday embodying Parisian fashion with a black mini-skirt paired with knee-high leather boots. She complemented the outfit with a white blouse featuring fluted sleeves and a buckle-detail collar, accessorized by a £335 Longchamp Le Pliage shoulder bag in green. Her blonde hair was styled straight, and she wore a bronzed makeup look, drawing attention to her sapphire engagement ring, which resembles Catherine, Princess of Wales's own jewel.

Thevenet, a financial analyst, is married to James Middleton, the brother of Catherine, Princess of Wales. The couple became engaged in 2019 and married in an intimate ceremony in Bormes-les-Mimosas in 2021. They welcomed their son, Inigo, in October 2023.

Despite her connection to the royal family, Thevenet generally maintains a low profile. While she appears on her husband's Instagram feed, public appearances are infrequent. She did, however, attend Royal Ascot this year with her mother-in-law, Carole Middleton, and the Princess of Wales, marking Kate's return to public events after her cancer treatment.

Alizee, who was last pictured at Wimbledon with her husband, was all smiles as she arrived for the first edition of Longchamp Art Festival in Marais, ahead of the exhibition opening today

This Parisian appearance contrasted with a previous occasion where Thevenet was seen in a vintage-inspired white maxi dress and a boater hat. Earlier this year, James Middleton shared a photograph for his 39th birthday that also highlighted a sartorial link to the Princess of Wales. In the image, Thevenet wore a brown gilet that bore a resemblance to a similar style previously worn by Kate Middleton, prompting speculation about shared fashion choices or the item being a family hand-me-down.

James Middleton founded the dog food company Ella & Co and has been open about his past struggles with depression, crediting nature, animals, and fatherhood with positively impacting his mental health. He recently returned to social media after a period of absence, explaining that he had given up social media for Lent, reflecting on the pressures it can exert.