King Charles, who participated in the solemn commemorations for the 80th anniversary of D-Day on Wednesday, found the experience to be exhausting for the monarch battling cancer.
Diagnosed earlier this year, the King is closely monitored by his medical team to ensure he does not overexert himself with his responsibilities.
Royal sources confirmed to The Mirror that Prince William will now step in for his father at an international ceremony held at Omaha Beach, attended by world leaders including US President Joe Biden and French President Emmanuel Macron.
"While His Majesty’s doctors are very encouraged with the progress made so far, the King is continuing with his treatment program, and thus we have to prioritize and protect his continued recovery," the palace source said.
"On that basis, each event/day has to be carefully calibrated, and given the King’s other commitments on the day, it was advised that the international event later in the afternoon may be a step too far at this stage."
The insider also shared that King Charles is "of course delighted that the Prince of Wales will be attending to represent the nation" at the event.
