King Charles and Queen Camilla stepped out at Royal Ascot for a fourth day, looking for a winner with his horse Purple Rainbow, bred by Queen Elizabeth.

King Charles III and Queen Camilla have endured disappointment on the opening day of Royal Ascot as their horse, Reaching High, failed to back up his status as favorite in one of the big races.

The Royal Ascot is the annual week of horse racing at Ascot Racecourse, which is a track founded in 1711 by Queen Anne. It is located about six miles from Windsor Castle, and it is traditional that the Royal Family ride in a procession from the castle to the racecourse to kick off the first day of the event.