According to The Telegraph:
King Charles III… is the first monarch to have ridden at Trooping the Colour since Elizabeth II did so in 1986. Also riding on horseback were Prince William, Princess Anne and Prince Edward. The King was treated to an extended military flypast following Trooping the Colour after his Coronation day display was scaled down due to bad weather. Around 70 aircraft from the Royal Navy, British Army and Royal Air Force, some of which date back to the Battle of Britain memorial flight, took part in His Majesty’s first official birthday celebrations.
The Royal Family Channel provided some highlights from this year’s Trooping the Colour:
