FILE - Britain's King Charles III and Queen Camilla arrive to attend the Christmas day service at St Mary Magdalene Church in Sandringham in Norfolk, England, Dec. 25, 2023. (AP Photo/Kin Cheung, File)
FILE - Britain's Kate, Princess of Wales, listens to staff as she and Prince William visit the Open Door Charity, a charity focused on supporting young adults across Merseyside with their mental health, using culture and creativity as the catalyst for change in Birkenhead, England, Jan. 12, 2023. (AP Photo/Jon Super, Pool, File)
FILE - Britain's Kate, Princess of Wales, Princess Charlotte, Prince George, William, the Prince of Wales, Prince Louis and Mia Tindall arrive to attend the Christmas day service at St Mary Magdalene Church in Sandringham in Norfolk, England, Dec. 25, 2023. (AP Photo/Kin Cheung, File)
FILE - Newspapers on display for sale, in London, March 19, 2024. A British newspaper says Prince William and his wife Catherine have been filmed at a farm shop near their Windsor home. It's the first reported footage of Kate since she had abdominal surgery for an unspecified condition two months ago. (AP Photo/Kirsty Wigglesworth, File)
FILE - Britain's Prince William attends the annual Commonwealth Day service ceremony at Westminster Abbey in London, March 11, 2024. (Henry Nicholls/Pool via AP, File)
FILE - Media gather outside The London Clinic where Kate, Princess of Wales is recovering from surgery, in London, Jan. 17, 2024. Kensington Palace says the Princess of Wales has been hospitalized after undergoing planned abdominal surgery and will remain at The London Clinic for up to two weeks. (AP Photo/Kin Cheung, File)
FILE - First row, from left, Duchess of Glucester, Duke of Gloucester, Admiral Sir Tim Laurence, Princess Anne and Queen Camilla attend a thanksgiving service for the life of King Constantine of the Hellenes at St George's Chapel, in Windsor Castle, England, Feb. 27, 2024. Constantine II, who died on January 10, 2023 was the last King of Greece, reigning from 1964 to 1974. (Jonathan Brady/Pool via AP, File)
FILE - A selection of front pages of the British national newspapers for Feb. 6, 2024, after it was announced that King Charles III has cancer. Buckingham Palace announced Monday evening that the king has begun outpatient treatment for an undisclosed form of cancer. (AP Photo/Kin Cheung, File)
FILE - Britain's King Charles III leaves The London Clinic in central London, Jan. 29, 2024. King Charles III was in hospital to receive treatment for an enlarged prostate. The palace's disclosure that King Charles III has been diagnosed with cancer shattered centuries of British history and tradition in which the secrecy of the monarch's health has reigned. Following close behind the shock and well wishes for the 75-year-old monarch came widespread surprise that the palace had announced anything at all. (AP Photo/Alberto Pezzali, File)
FILE - A convoy of cars believed to be carrying Prince Harry arrive at Clarence House following the announcement of King Charles III's cancer diagnosis, in London, Feb. 6, 2024. Buckingham Palace announced Monday evening that the king has begun outpatient treatment for an undisclosed form of cancer. (AP Photo/Kin Cheung, File)
FILE - A general view of The London Clinic where Kate, Princess of Wales is recovering from surgery, in London, Jan. 17, 2024. A British privacy watchdog said Wednesday, March 20, 2024, it is looking into a report that staff at a private London hospital tried to access the Princess of Wales' medical records while she was a patient for abdominal surgery. (AP Photo/Kin Cheung, File)