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Prince Harrytakes readers into the issues that drove him andPrince Williamapart inSpare.
The Duke of Sussex’s highly anticipated memoir, out Tuesday, is marketed as a reflection on grief, love and healing, recounting how Harry’s life experiences have shaped him into the man he is today.
According to excerpts published ahead of the book’s release, his brotherPrince Williamappears in multiple stories. Before the memoir hits shelves, here’s everything Prince Harry has reportedly written about his relationship with the future monarch.
Harry claims William attacked him during an argument over Meghan
Harry claimed the disagreement started when William called his wifeMeghan Markle"difficult," “rude” and “abrasive,” to which Harry replied that his brother was simply “parrot[ing of] the press narrative” about his wife.
Prince William and Prince Harry.Daniel Leavl-Olivas-Pool Getty Images

The Guardianreported that Harry then accused his brother of acting like an heir, after which insults were exchanged. William reportedly claimed he was just trying to help.
Chris Jackson/Getty Images; Danny Martindale/WireImage

Harry Claims William and Kate Told Him to Wear the Nazi Costume
According to the outlet,Prince Harrywrote that the current Prince and Princess of Wales “howled with laughter” when they saw him in the outfit. Harry was 20 at the time, and the photo of him in a military shirt and red swastika armband holding a drink and a cigarette made world headlines.
According toPage Six, Harry claimed inSparethat he debated between dressing as a Nazi or a pilot for the “Native and Colonial”-themed costume party.Prince Williamalso attended, dressed as a lion.
“I phoned Willy and Kate, asked what they thought. Nazi uniform, they said,” Harry writes, saying he brought the costume home and tried it on. “They both howled. Worse than Willy’s leotard outfit! Way more ridiculous! Which, again, was the point.”
Harry has since expressed deep remorse over the offensive outfit, calling the decision “one of the biggest mistakes of my life” in theHarry & Meghandocuseries on Netflix.
Prince Harry and Prince William.Samir Hussein/WireImage

Harry Calls William His ‘Beloved Brother’ and ‘Archnemesis’
During his interview that aired withMichael StrahanonGood Morning AmericaMonday, the anchor quotedSpareandasked Harry to elaborateon calling William his"beloved brother" and “archnemesis"in the book.
Prince William and Kate Middleton on their wedding day in 2011.Chris Jackson/Getty

Harry Felt Like William Was ‘Gone — Forever’ After He Got Married
“The brother I’d escorted into Westminster Abbey that morning was gone — forever,” Harry reportedly wrote. “Who could deny it? He’d never again be first and foremost Willy. We’d never again ride together across the Lesotho countryside with capes blowing behind us. We’d never again share a horsey-smelling cottage while learning to fly. Who shall separate us? Life, that’s who.”
Harry and William Asked Their Father Charles Not to Marry Camilla
According to the outlet, Harry said he and William had private meetings with Camilla in an attempt for Charles to formally introduce his love interest to his sons. Harry wrote that he initially feared Camilla — then known as Camilla Parker Bowles — would be like a “wicked stepmother.”
“I remember wondering…if she would be cruel to me; if she would be like all the wicked stepmothers in the stories,” he wrote, according to theDaily Mail.
According to the outlet, the meetings went well, but the brothers were opposed to the idea of their dad walking down the aisle with the “other woman.” Charles and Camilla’syears-long relationshipoverlapped with their respective marriages to Princess Diana and Andrew Parker Bowles, and Diana famously referenced Camilla in her 1995Panoramainterview when she said, “There werethree of usin this marriage, so it was a bit crowded.”
Charles and Camilla wed in April 2005, and she received the title of Duchess of Cornwall following their union. AfterQueen Elizabethdied, Charles became King Charles III andbestowed the title of Queen Consortupon his wife.
source: people.com