Prince Harry is competing with his brother William and dad Charles to be the "better royal", a royal biographer has claimed.
Angela Levin said the Duke of Sussex aims to be more like Diana - and he wants to continue his mum's work with Meghan Markle.
Ahead of the unveiling of a statue for Princess Diana last week, Harry said his mum loved young people and thought the world could be changed by youth - which is something he and his wife want to reflect in their work too.
Ms Levin said Harry's speech seemed to "put William second", but at the same time, she said the two brothers "behaved impeccably" at the event on July 1.
The author believes Harry wants to be a royal "but in a very different way, a Californian way", as he wants to be "strong and powerful".
She said: "I think it's because he's fed up with being the spare to the heir and he wants to be strong and powerful so he's making these demands, small and not so small, and he's going to build up his capacity to do that I fear.
"He's competing with his brother and his father to be the better royal and more like Diana."
Speaking of the reunion between William and Harry at the statue unveiling on Thursday, a source told The Sun: "There were no peace talks and distance remains there.
"It is a step forward but this was not the time or the place."
It comes after reports emerged that Harry and Meghan could return to the UK in September for another memorial event to honour Princess Diana.
The insider added: "September is a date pencilled in for a more extensive celebration of the statue, and Harry will want to return."
The memorial in September is due to be confirmed this month, according to reports.
Sources close to Diana’s family have revealed they are "hopeful" that Harry and William can heal their rift, while others close to the pair say it is “almost impossible for Harry to be trusted".
A source said after the event on July 1: “Despite William and Harry coming together this week for the sole cause of commemorating their mother’s legacy, Harry is very much on the outside.
“They put on a show, did what they had to do to make sure the day went without a hitch and said goodbye.
"It was nothing more, there was nothing to discuss. Things are still far too raw for William and other members of the family to entertain Harry, so it's best to let things lie for the moment.”
A statue of Princess Diana now sits in the Sunken Garden at Kensington Palace.
It shows the Princess of Wales standing with three children around her.
Kensington Palace said the children "represent the universality and generational impact of the princess' work".
The statue's sculptor Ian Rank-Broadley said: "Diana, Princess of Wales was an icon who touched the lives of people right around the world, so it has been a privilege to work with Prince William and Prince Harry on this statue, which commemorates her life.
"We wanted to capture her warmth and humanity while showcasing the impact she had across generations. I hope people will enjoy visiting the statue and the Sunken Garden, taking a moment to remember the Princess."
