On Jan. 10, Prince Harry’s highly anticipated memoir "Spare" will release, and Princess Diana’s biographer Andrew Morton feels that it will cause concern, but won't destroy the British Royal Family.

Morton believes that the family will put on a united front while the Duke and Duchess of Sussex tell all, reported Fox News. The two were were honored at the Ripple of Hope gala on Tuesday. This was followed by Netflix dropping the first installment of their docuseries titled, "Harry & Meghan" on Thursday. It promised to show their struggles in the public eye, and then the second installment will be released on Dec. 15. Then next month, "Spare" will hit bookshelves.

Morton said that Harry’s got every right to write his memoir, and that he’s not the first royal to do so, "nor will he be the last." Harry shared that the trend of royals writing books goes back to Edward VIII, who wrote, "A King’s Story" in 1951. Morton said that it was an international bestseller like the one written by Harry is "going to be, and it upset the royal family." He recalled that Harry's mother, Diana, wrote with the author ,"Her True Story," which "upset the royal family." He noted that when King Charles wrote his book with Jonathan Dimbleby when he was a Prince, he had criticized his parents. "That was a big book and again, (it) upset the royal family."

Morton said that Harry’s memoir "will cause concern." He thinks that it will make headlines around the world, "but it won’t destroy the institution." He shared that if the institution is so weak that it can’t stand a "ghostwritten book by a junior member, then it’s probably not worth keeping it." The British author noted that a book written by a monarch, a future queen, Diana, and a book by Charles are "far more relevant and important than a book by" someone who is "sixth in line to the throne."

He recently wrote a book about Harry’s grandmother titled, "The Queen: Her Life," in which he alleged that the late Queen met her namesake during the Platinum Jubilee. But she did not want to be clicked with Harry and Meghan's daughter Lilibet, one, during what was supposed to be a heartfelt moment. Back then, she was also facing mobility issues as her health was deteriorating. Harry and Meghan also share Archie, three, apart from Lilibet. The monarch died on Sept. 8 at age 96, reported Yahoo!

As for Harry and Meghan, they have already addressed their problems with the Royal Family in an interview with Oprah Winfrey that aired last year.

Prince Harry and Meghan leave Westminster Hall, London after the coffin of Queen Elizabeth II was brought to the hall It appears that Prince Harry's memoir, "Spare" could see him use his royal relatives as "collateral damage" in his search for closure. Photo Danny Lawson - WPA Pool/Getty Images