Trooping the Colour is the annual celebration of the monarch’s birthday—a lively event where the royal family comes together in festive style. For Prince Louis, that often means playful antics, while Kate Middleton consistently uses the occasion to showcase her most eye-catching outfits.

Thousands gathered in central London to watch the parade march down the Mall toward Buckingham Palace, with royals arriving in horse-drawn carriages. Among them were Catherine, Princess of Wales, Prince William, and their children—George, Charlotte, and Louis.

The Princess wore a striking aquamarine wool coat with ivory lapels and cuffs by Catherine Walker, a designer beloved by both Kate and the late Princess Diana. She paired it with a wide-brimmed matching hat by Juliette Botterill, featuring a sculptural detail. As always, her jewelry carried sentimental significance—she chose the Irish Guards Regimental Brooch, reflecting her role as colonel, and earrings that once belonged to Queen Elizabeth II.

Princess Charlotte mirrored her mother’s style in a dress of a similar shade, complete with a white waist bow, white flats, and her long hair in a braid.

Another notable detail for the royal family today was the black armbands they wore at King Charles’s request, honoring the victims of the recent Air India plane crash.

This year’s Trooping the Colour held special significance—it marked the Princess of Wales’s first public appearance since her cancer diagnosis. She wore an upcycled white Jenny Packham dress with black-and-white ribbon detailing, paired with a Philip Treacy hat. Last year, she opted for a custom shamrock-green ensemble by designer Andrew Gn.

Meanwhile, King Charles III and Queen Camilla rode in an open carriage down the Mall. The Queen wore a white coat dress with a matching wide-brimmed hat, accessorized with Queen Elizabeth’s Grenadier Guards Brooch.

As Prince William participated in the military parade, Catherine and the children traveled in their carriage, all smiles under the sunny skies.

While last year’s sleek look signaled Catherine’s resilient return to public life, this year’s bold choice reflected the royal family’s enduring unity and joy—as bright as the day itself.