The King wore a new tartan for his visit to the Braemar Royal Highland Gathering, a short distance from his summer residence at Balmoral.
The King Charles III tartan, named after the monarch, is green, blue and red and was designed by the Scottish Tartans Authority to mark the coronation.
The King was accompanied by the Queen, wearing an outfit by Roy Allen, with his sister the Princess Royal and her husband Vice-Admiral Sir Tim Laurence.
John McLeish, chairman of the Scottish Tartans Authority, said: “Our iconic national cloth has a distinct style and evokes deep feelings of belonging, making it the best-known and best-loved fabric in the world.
“We are honoured that his majesty has agreed that a new tartan should be created