The last-minute nature of the Princess of Wales’ cancellation made Charles look weak and disrespected, but, suffering from cancer himself, he gets it, sources say.

The Princess of Wales was originally listed as taking part in Wednesday's traditional procession at the racing festival, which takes place just a few miles from Windsor, but the list was changed at the last minute.

Prince William and Kate Middleton gave a special nod to King Charles as the royal family marked a key event. On June 22, the monarch commemorated Windrush Day, honouring the