Kate, 44, put on a typically elegant display in a Catherine Walker light blue and white coat dress and a matching Philip Treacy hat, and was sat next to her youngest Louis for the event in London.

The Royal Family made their annual appearance on the Buckingham Palace balcony last year to mark King Charles' birthday during the Trooping the Colour parade, with lip reader…

The Princess of Wales looked typically stunning as she took part in the King's official birthday parade in London today.