Kate, Princess of Wales reacts as she waits to present the trophy to Carlos Alcaraz of Spain after he defeated Novak Djokovic of Serbia in the men's singles final at the Wimbledon tennis championships in London, Sunday, July 14, 2024. (AP Photo/Kirsty Wigglesworth)

King Charles III smiles as he attends the inaugural King's Foundation charity awards at St James's Palace in London, Tuesday, June 11, 2024, with British pop icon Rod Stewart, left, and former footballer David Beckham in the background. (AP Photo/Kirsty Wigglesworth,Pool)

Britain's Prince William smells a bunch of flowers as he leaves after attending the annual Commonwealth Day Service of Celebration at Westminster Abbey in London, Monday, March 11, 2024. (AP Photo/Kirsty Wigglesworth)

Kate, Princess of Wales looks out from her carriage as she travel to attend the Trooping the Color ceremony, in London, Saturday, June 15, 2024. (AP Photo/Alberto Pezzali)

Anti-monarchy Not My King protesters demonstrate as King Charles III and Queen Camilla ride past in their carriage to the Houses of Parliament ahead of the State Opening of Parliament in the House of Lords, London, Wednesday, July 17, 2024. (AP Photo/Kin Cheung)

Britain's King Charles III takes a salute as he attends the Trooping the Color ceremony, in London, Saturday, June 15, 2024. (AP Photo/Alberto Pezzali)

Britain's King Charles III and Queen Camilla leave The London Clinic in central London, Monday, Jan. 29, 2024. King Charles III was in hospital to receive treatment for an enlarged prostate. (AP Photo/Alberto Pezzali)

Britain's Prince William, the Prince of Wales, plays pool billiard during a visit to WEST in London, Thursday, March 14, 2024. (AP Photo/Frank Augstein, Pool)

Britain's King Charles III, second from right, reaches out to greet the crowd as Queen Camilla stands beside him during their visit to the Sydney Opera House in Sydney, Australia, Tuesday, Oct. 22, 2024. (AP Photo/Mark Baker, Pool)

Britain's King Charles III and Queen Camilla pose for a group photo during their visit to the Sydney Opera House in Sydney, Australia, Tuesday, Oct. 22, 2024. (AP Photo/Mark Baker, Pool)

Britain's King Charles III and Queen Camilla arrive for the Order of the Garter service, which is held at St George's Chapel at Windsor Castle, in Windsor, England, Monday, June 17, 2024. (AP Photo/Kirsty Wigglesworth, Pool)

Britain;s Prince Louis, waves to the crowd he is the youngest child of Kate, Princess of Wales, who is seen in the background, looks out through a misted up window from a carriage as he attends the Trooping the Color ceremony, in London, Saturday, June 15, 2024. (AP Photo/Alberto Pezzali)

King Charles III attends the Remembrance Sunday Service at the Cenotaph in London, Sunday, Nov. 10, 2024. (AP Photo/Alberto Pezzali, Pool)

Britain's Queen Camilla views the studio at Charleston House after a surprise appearance at the opening session of the Charleston Festival in Charleston, England, Thursday, May 16, 2024. (AP Photo/Kirsty Wigglesworth, Pool)

Britain's King Charles III, second right, with Queen Camilla, right, is joined by Prince George, left, Prince William, Prince Louis Princess Charlotte and Kate Princess of Wales on the Balcony at Buckingham Palace after attending the Trooping the Color ceremony, in London, Saturday, June 15, 2024. (AP Photo/Alberto Pezzali)

French President Emmanuel Macron and Britain's King Charles III attend the UK's national commemorative event for the 80th anniversary of D-Day in Ver-sur-Mer, France, Thursday, June 6, 2024. (AP Photo/Alastair Grant)

Britain's King Charles III holds up flowers he was given as he leaves after a visit to University College Hospital Macmillan Cancer Centre in London, Tuesday, April 30, 2024. (AP Photo/Kin Cheung)

Britain's King Charles III and Queen Camilla wave as they arrive by carriage on the first day of the Royal Ascot horse race meeting at Ascot, England, Tuesday, June 18, 2024. (AP Photo/Alberto Pezzali)

Kate, Princess of Wales, left, and Sophie, Duchess of Edinburgh attend the Remembrance Sunday Service at the Cenotaph in London, Sunday, Nov. 10, 2024. (AP Photo/Alberto Pezzali, Pool)