Another year, another Trooping the Colour ceremony, another look from Kate Middleton. Today (June 13), the Royal Family gathered at Horse Guards Parade in central London in celebration of King Charles III’s official birthday.

Each year for Trooping the Colour, Catherine, Princess of Wales has turned out a look that embraces summer’s prettiest color palette and features some kind of sentimental detail. 2026 is no different: Kate opted for an icy blue Catherine Walker Lafayette coatdress with white piped lapels, a nipped in waist, and strong shoulders, paired with a wide-brimmed, sculptural bow-topped Philip Treacy hat in a similar shade. (Both look like new purchases for the royal, who loves to shop her own wardrobe and frequently rewears her own pieces.) She styled the look with Cassandra Goad Cavolfiore pearl studd earrings, pointed white pumps, and an Irish Guards regimental brooch. (The latter a nod to her role as colonel.)

Catherine was joined for a sunny ride in the Ascot Landau carriage to the ceremony—as is tradition—by her children, Princes George and Louis, and Princess Charlotte. Her sons sweetly matched her look with their own pale blue ties, while Charlotte wore a puffy-sleeved, button front white tea dress and a matching bow in her hair. Prince William took part in the military parade in full uniform.

The Kate Middleton style formula can be tracked diligently by her consistent appearances at the Trooping the Colour ceremony, having long made it the time to debut her most striking, spirited outfits. She even joined the parade in 2024, one of a handful of royal duties and events after announcing her cancer treatment.

Last year, both Catherine and Charlotte opted for a coordinating mother-daughter moment in aquamarine. Kate wore another striking blue Catherine Walker dress coat, while Princess Charlotte followed suit in a similarly colored, bow-waisted dress.

Despite the past year’s challenges for the British Royal Family, the sun is shining on Trooping the Colour 2026, and a thousands-strong crowd join in on the joyous, deeply traditional royal display.