Prince George, Princess Charlotte and Prince Louis knew exactly what to do when Kate Middleton prompted her kids with a quick reminder at Trooping the Colour.

After arriving at Buckingham Palace by car, Kate and the children, Prince George, 11, Princess Charlotte and Prince Louis, 7, traveled in a traditional horse-drawn carriage down The Mall. Charlotte sat beside her mother, while her brothers faced backward across from them.

It was a Trooping the Colour to remember over the weekend as King Charles marked his official birthday celebration on Saturday—a long-standing tradition where the British monarch publicly acknowledges their birthday in June versus the actual day in order to take advantage of better weather.

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Kate Middleton and royal family unite at King Charles III's birthday parade, with the Princess of Wales wearing an ensemble reminiscent of late mother-in-law Princess Diana.

The annual display of British military might serves as a seasonally tweaked birthday celebration for the sitting monarch.

All eyes were on the royal family during the annual Trooping of the Colour parade, which is why Kate Middleton made sure her and Prince William's three children were on their best behavior for the entirety of the celebration.

Middleton — who announced in January that she is in remission from cancer — was spotted conversing and laughing with her kids, as they made their way to Buckingham Palace. The matriarch sweetly matched her young daughter for the event in aquamarine outfits.

Kate Middleton made her second Trooping the Colour appearance since announcing her cancer diagnosis in March 2024, and five months after announcing in January 2025 that she was in remission.