Catherine, the Princess of Wales, attended the Trooping the Colour ceremony today to mark King Charles III’s official birthday. The 44-year-old princess appeared in a powder-blue dress by Catherine Walker, paired with an oversized Philip Treacy hat and pearl earrings. Observers noted the ensemble’s similarity to outfits worn by the late Princess Diana, who also wore Catherine Walker designs and a pale blue outfit with a coordinating Philip Somerville hat in 1992. The Princess of Wales wore a three-strand pearl bracelet designed by Nigel Milne, which belonged to Princess Diana. According to InStyle, Diana wore the piece throughout 1989, including at a state banquet in Hong Kong. Prince William inherited the bracelet following Diana’s death in 1997 and later gifted it to Kate. Princess Charlotte also wore a remarkably similar bracelet while sitting across from her mother in the royal carriage. The family’s appearance featured coordinated looks. Princess Charlotte wore a white dress with blue details, while Prince George wore a baby blue tie. Prince Louis joined them in the carriage, and Prince William participated in the military procession on horseback. Queen Camilla wore a scarlet ceremonial coat with gold detailing and a dark hat with a white feather plume, while King Charles appeared in a military dress uniform with medals and a blue sash. The annual ceremony, which commemorates the monarch’s birthday in June due to tradition and weather, featured more than 1,500 military personnel, 200 horses, and 400 musicians. The event concluded with the Royal Family viewing a Royal Air Force flypast from the Buckingham Palace balcony. This appearance marked a high-profile engagement as the Princess of Wales continues to resume royal duties following her 2024 cancer diagnosis and treatment.