Prince William and Kate Middleton reportedly feel 'intense anxiety' about ascending the throne. Since the announcement of King Charles III's cancer, the prospect of accession to the throne has come closer for the Prince and Princess of Wales.

"The news of Charles' cancer put William and Catherine in frightening proximity to the Throne," Tina Brown, former editor of Vanity Fair, told the New York Times. For the first time since announcement of his cancer, Charles III appeared in public at Easter mass in Windsor.