Kate Middleton and Her French Sister-in-Law Just Twinned in the Same Cutesy Trend

You already know and love Kate Middleton, but are you familiar with her French sister-in-law Alizee Thevenet? Tonight in London, Thevenet and her husband, James Middleton, attended the Princess of Wales's fourth-annual Together at Christmas carol service. Staying true to her roots, Thevenet chose to wear two French brands: Sézane and Longchamp. I particularly love how both Middleton and Thevenet wore the same cutesy trend: oversize bows.

Specifically, Middleton's sister-in-law wore Sézane's Christie Jacket ($225), Emilio Trousers ($160), Blanca Vest ($175), Coleta Shirt ($135), and Mélanie Mary Janes ($225). She completed the look with a Longchamp Le Roseau XS Handbag ($620). Also present at the festive event were Princess Beatrice, Zara Tindall, Pippa Middleton, and other well-dressed members of the extended family. Scroll down to see and shop what everyone wore tonight.

The Best Outfits From Tonight's Royal Christmas Event

Kate Middleton wears a black bow and a red coat to a Christmas event in December 2024

(Image credit: Getty Images)

On Kate Middleton: Alexander McQueen coat; Emilia Wickstead skirt; Ralph Lauren boots; Mulberry Amberley Baroque Pearl Earrings ($224)

Alizee Thevenet wears a Sezane outfit to Kate Middleton's Together at Christmas event

(Image credit: Getty Images)

On Alizee Thevenet: Sézane Christie Jacket ($225), Emilio Trousers ($160), Blanca Vest ($175), Coleta Shirt ($135), and Mélanie Mary Janes ($225); Longchamp Le Roseau XS Handbag ($620)

Zara Tindall wears a gold Strathberry bag and a burgundy velvet Veronica Beard pantsuit

(Image credit: Getty Images)

On Zara Tindall: Veronica Beard Ellette Velvet Jacket ($524) and Lebone Velour Pants ($498); Strathberry Crescent on a Chain Bag ($455)

Pippa Middleton wears a black coat and burgundy shoes at a Christmas event in December 2024

(Image credit: Getty Images)

On Pippa Middleton: Karen Millen coat; Emmy London bag and shoes

Princess Beatrice wears a burgundy coat

(Image credit: Getty Images)

On Princess Beatrice: Hobbs London coat; Me + Em dress; Aspinal of London bag; Jimmy Choo shoes

Associate Director, Fashion News

Erin got her start as a Who What Wear intern over 13 years ago—back when the site only published a single story per day. (Who What Wear has since increased that number twentyfold.) She graduated magna cum laude from USC, which is how she ended up moving to Los Angeles from her hometown of San Diego. In college, she also interned at Refinery29, where she was promoted to editorial assistant and then assistant editor. After nearly three years at R29, she came back to WWW in 2016, where she currently holds the title of Associate Director of Fashion News (as well as the unofficial title of resident royal expert—in case you haven't noticed her numerous Meghan Markle and Kate Middleton stories). She spends her days trying to incorporate her idols, Anna Wintour and Roger Federer, into as many stories as possible. Outside of work, she loves tennis, classic rock, traveling, and smothering her dog with affection.