These are the first pictures from the event by Press Association photographer Yui Mok:

1. The Princess of Wales, Prince George, Princess Charlotte and Prince Louis arrive for the Trooping the Colour ceremony
The Princess of Wales, Prince George, Princess Charlotte and Prince Louis arrive for the Trooping the Colour ceremony at Horse Guards Parade, central London, as King Charles III celebrates his official birthday. Yui Mok/PA Wire Photo: Yui Mok

2. The Princess of Wales, Prince Louis and Princess Charlotte arrive for the Trooping the Colour ceremony
The Princess of Wales, Prince George, Princess Charlotte and Prince Louis arrive for the Trooping the Colour ceremony at Horse Guards Parade, central London, as King Charles III celebrates his official birthday. Yui Mok/PA Wire Photo: Yui Mok

3. The Princess of Wales and Prince Louis arrive for the Trooping the Colour ceremony
The Princess of Wales and Prince Louis arrive for the Trooping the Colour ceremony at Horse Guards Parade, central London, as King Charles III celebrates his official birthday. Yui Mok/PA Wire Photo: Yui Mok

4. The Princess of Wales and Prince Louis arrive for the Trooping the Colour ceremony at Horse Guards Parade
The Princess of Wales, Prince George, Princess Charlotte and Prince Louis arrive for the Trooping the Colour ceremony at Horse Guards Parade, central London, as King Charles III celebrates his official birthday. Yui Mok/PA Wire Photo: Yui Mok

