King Charles had a very busy Thursday, carrying out numerous solo engagements, including a garden party attended by HELLO!, so on Friday, the monarch made sure to relax. The royal was among the attendees at the Royal Windsor Horse Show, where he was joined by the Duke and Duchess of Edinburgh, alongside their daughter, Lady Louise Windsor, who was working her part-time job at the event. The event was a firm favourite of Charles’ mother, the late Queen Elizabeth II, with the former monarch seen attending the show four months before she passed away on 8 September 2022. At times, Charles, who wore a grey suit for his outing, looked positively tickled, although at other times, he also had his head in his hands. © PA Images via Getty ImagesCharles got very expressive at the show It wasn’t just Charles who appeared to be tickled pink at the event, as Duchess Sophie was also seen with a huge grin on her face. The monarch doesn’t always attend the annual event, but he was joined by …