LONDON, UNITED KINGDOM - JUNE 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) King Charles III (C), wearing his Welsh Guards uniform, Prince William, Prince of Wales (Colonel of the Welsh Guards) (L) and Princess Anne, Princess Royal (Colonel of the Blues and Royals) (R) depart Buckingham Palace on horseback to attend Trooping the Colour on June 17, 2023 in London, England. Trooping the Colour is a traditional military parade held at Horse Guards Parade to mark the British Sovereign's official birthday. It will be the first Trooping the Colour held for King Charles III since he ascended to the throne. (Photo by Max Mumby/Indigo/Getty Images)
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Getty Images Entertainment Max Mumby/Indigo

LONDON, ENGLAND - JUNE 17: Queen Camilla and Catherine, Princess of Wales during Trooping the Colour on June 17, 2023 in London, England. Trooping the Colour is a traditional parade held to mark the British Sovereign's official birthday. It will be the first Trooping the Colour held for King Charles III since he ascended to the throne. (Photo by Samir Hussein/WireImage)
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WireImage Samir Hussein

LONDON, ENGLAND - JUNE 17: Princess Charlotte of Wales, Prince Louis of Wales and Prince George of Wales are seen during Trooping the Colour on June 17, 2023 in London, England. Trooping the Colour is a traditional parade held to mark the British Sovereign's official birthday. It will be the first Trooping the Colour held for King Charles III since he ascended to the throne. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang

LONDON, ENGLAND - JUNE 17: Sophie, Duchess of Edinburgh and Timothy Laurence are seen during Trooping the Colour on June 17, 2023 in London, England. Trooping the Colour is a traditional parade held to mark the British Sovereign's official birthday. It will be the first Trooping the Colour held for King Charles III since he ascended to the throne. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang

LONDON, ENGLAND - JUNE 17: Birgitte, Duchess of Gloucester and Prince Richard, Duke of Gloucester are seen during Trooping the Colour on June 17, 2023 in London, England. Trooping the Colour is a traditional parade held to mark the British Sovereign's official birthday. It will be the first Trooping the Colour held for King Charles III since he ascended to the throne. (Photo by Karwai Tang/WireImage)
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WireImage Karwai Tang