FILED - 21 November 2023, United Kingdom, London: The Prince and Princess of Wales during the ceremonial welcome for the President of South Korea, Yoon Suk Yeol, and his wife, Kim Keon Hee, at Horse Guards Parade, central London, on day one of the state visit to the UK. The Princess of Wales has revealed she is undergoing chemotherapy treatment for cancer. She announced the news in a pre-recorded message that was broadcast on Friday evening. Photo: Chris Jackson/PA Wire/dpa

FILED - 22 June 2022, United Kingdom, London: Then Duke and Duchess of Cambridge, now Prince and Princess of Wales, during their visit to ELEVATE at Brixton House in London to meet with younger generations of the British-Caribbean community, and other diasporas, who represent the next generation of British creative talent, to mark Windrush Day. The Princess of Wales has revealed she is undergoing chemotherapy treatment for cancer. She announced the news in a pre-recorded message that was broadcast on Friday evening. Photo: Eddie Mulholland/Daily Telegraph/PA Wire/dpa

LONDON, UNITED KINGDOM - JUNE 15: Princess of Wales Kate Middleton appears in public for the first time in months during the 'Trooping the Colour' parade that is held for the official birthday of King Charles III, the carriages carrying King Charles III, his wife Queen Camilla and members of the royal family left Buckingham Palace with a cortege at 10.30 local time in London, United Kingdom on June 15, 2024. Princess Kate had an abdominal surgery in January. It was announced on March 22 that Middleton, who was stated to have interrupted his official duties until Easter at the end of March due to the surgery, had cancer. Rasid Necati Aslim / Anadolu/ABACAPRESS.COM

Britain's Prince William and Kate, Princess of Wales arrive for the Royal Ascot horse racing meeting, at Ascot Racecourse in Ascot, England, Friday, June 23, 2023.(AP Photo/Alastair Grant)

Kate, Princess of Wales, departs Westminster Abbey after the coronation ceremony in London Saturday, May 6, 2023. (AP Photo/Alessandra Tarantino)