CHARLES BEGS HIS BOYS 'DON'T RUIN MY DAY!'

The King fears his warring sons may overshadow his coronation

He's been waiting his whole life for this moment and sources say a nervous King Charles III has made a plea to his warring sons, Princes William and Harry, to put aside their differences - if only for the coronation.

"We know from Harry's book Spare that the King begged his sons not to make his last years a misery and he will be hoping they can call a truce for the biggest day of his life," royal expert Phil Dampier tells Woman's Day.

According to Phil, Charles, 74, will have spoken to William, 40, and asked him to be civil with his brother, 38, when they meet face to face.

"In public, they will both be on their best behaviour when the eyes of the world will be on them," he says. "But outside or in unguarded moments, everyone will be looking at the body language between them, as well as between Kate and Harry."