Prince Harry reportedly begged his father King Charles not to marry Queen Consort Camilla and accuses her of leaking stories in his tell-all autobiography Spare.
In a leaked extract of the memoir, Harry says he and Prince William begged their father not to marry Camilla but that they would welcome her into the family.
It is claimed both Harry and William did approve of their stepmother but they were not keen on their father marrying for a second time after the death of their mother Princess Diana.
Meanwhile, Harry also alleges that Camilla leaked details of a meeting she had with William to the press and dishes on his first meeting with her.
It comes in an extract of the book, obtained by The Sun, after copies of Spare appeared to accidentally go on sale in Spain - five days ahead of its official release date.
It also says that Harry claims meeting Camilla for the first time was like awaiting an injection and that she appeared bored as they chatted about horses - and once pondered if she would become his "wicked stepmother".
Charles did eventually marry Camilla in 2005 and when he became King last year, she became Queen Consort.
Kensington Palace and Buckingham Palace have so-far declined to comment on the leaked claims from Harry’s book which emerged five days before the explosive tell-all autobiography Spare is due to be published.
An extract from the book was leaked by the Guardian - before the Sun found a copy on sale in a Spanish bookstore despite the tight pre-launch security.
In it, Harry claims he was physically attacked by his brother in a row and that it was him and the Princess of Wales who encouraged him to wear a Nazi uniform to a fancy dress party 2005
Harry wrote: "William called me another name, then came at me. It all happened so fast. So very fast. He grabbed me by the collar, ripping my necklace, and he knocked me to the floor.
"I landed on the dog’s bowl, which cracked under my back, the pieces cutting into me. I lay there for a moment, dazed, then got to my feet and told him to get out.”
Other revelations from the book include how the brothers's nicknames are Willy and Harold and how their father pleaded after the Duke of Edinburgh’s funeral: "Please, boys. Don’t make my final years a misery.”
Harry claimed William had come to his cottage in the grounds of Kensington Palace to discuss "the whole rolling catastrophe” of their relationship and struggles with the press, but was already “piping hot” when he entered.
William went on to call Meghan "difficult”, "rude” and "abrasive”, claims Harry - before allegedly saying he was trying to help and Harry replying: "Are you serious? Help me? Sorry – is that what you call this? Helping me?”
The duke said the comment further infuriated William who reportedlyswore while stepping toward him - prompting Harry to move to the kitchen.
Harry writes that he gave his brother a glass of water and said: "Willy, I can’t speak to you when you’re like this.”
He then claimed William called him another name before he "came at me” with it all happening "very fast” before the alleged physical confrontation.
The duke writes that William urged him to hit back, referencing fights they had as children, but that he refused and William left before returning and apologising.
Harry writes that William told him he did not need to tell "Meg” about this and added: "I didn’t attack you, Harold.”
The duke says he did not tell Meghan straight away but did ring his therapist, and later admitted to his wife what happened when she saw the "scrapes and bruises”.
Meanwhile, US website Page Six said sources reveals how Harry puts some of the blame for his Nazi uniform scandal on William and Kate.
He tells how the 20-year-old phoned the couple to ask them whether he should chose a pilot’s uniform or a Nazi one for the fancy dress party and William and Kate said the latter, and both howled with laughter when he and tried it on for them.
Harry, then 20, sparked outrage and was widely condemned when a photograph of him in the uniform complete with swastika ended up on the front page of a newspaper.
He admitted in his Netflix tell-all: "It was probably one of the biggest mistakes of my life.”
Amid the claims, ITV released a new trailer for Tom Bradby’s interview with the Duke, which will be broadcast on Sunday night.
Bradby challenges Harry on "invading the privacy of your most nearest and dearest without permission”.
Harry replies: "That would be the accusation from people that don’t understand or don’t want to believe that my family have been briefing the press.”
The duke is also seen saying: "I don’t know how staying silent is ever going to make things better.”
ITV News at Ten presenter Bradby – a friend of Harry’s – says: “Wouldn’t your brother say to you, ‘Harry, how could you do this to me after everything? After everything we went through?’ Wouldn’t that be what he would say?”
Harry replies: "He would probably say all sorts of different things.”
This story is based off a translated version of Prince Harry’s book Spare.
