Princess Diana's former butler has stated that when they were children, Harry used to struggle with the fact that his brother William ate more sausages than he did, and this could also be a reason for the competitive dynamic between the two brothers.
Paul Burrell , 64, recalled Harry asking why William got more sausages than him when dinner was served. Then the nanny would answer: William needs to eat more than you because he will be king one day.
Burrell believes these kinds of remarks ignited early tensions between the brothers.
“Once I saw the nanny give William three sausages for breakfast and Harry ate two. Harry looked at his plate and asked, "how come he gets three and I only get two?" When the nanny replied that William will become king, Harry calmed down and accepted it, but this is what he had to fight with in his own home," said Burrell.
Burrell believes that much of Harry's recent behavior came from growing up in an environment where he constantly had to be behind William.
He added that Diana pleaded with Charles not to send Harry to Eton College, out of concern that he would be constantly compared to his older brother, but her pleas fell on deaf ears.
Burrell claimed that Harry dealt with the problem of competing with his brother by becoming more vocal.
"William had to be measured and stoic and he would be on top of everything, whereas Harry wasn't. He would have to become a clown to be noticed," he said.
Paul Burrell also recalled an incident when William had an outburst and said he didn't want to be king.
"Harry said he was going to be king in his place, Diana laughed and said, 'You'd be a good king Harry,'" Burrell said.
Prince Harry's memoir 'Spare' became the best-selling non-fiction book ever, selling 1.43 million copies on its first day of sale in the UK, US and Canada.
It almost doubled the previous record - Barack Obama's A Promised Land, which sold 887,000 copies on the day of its release.