The blockbuster memoir of Prince Harry “Spare” is an unprecedented event in the royal family history in which he reveals his story in his own words. The Duke of Sussex's highly anticipated autobiography was first released on 10 January 2023 and has become one of the best-sellers in the UK. While a series of accusations against his brother Prince William in his book may shock you, the following unexpected confessions will surely be extremely startling.

Prince Harry wrote, when he was 20, he learnt his father King Charles III declared him a "spare" on the day of his birth.

The prince reveals when Princess Diana died in Paris in 1997, Sarah, Princess Diana's sister gifted him and Prince William a lock of their mother's hair. He describes how the box was a good luck charm for Meghan Markle's pregnancy.

According to the Duke of Sussex, his father King Charles III performs daily headstands in his boxer shorts due to his constant neck and back pain from years of playing polo.

Throughout the 416-page book, the Duke of Sussex reveals the royal brothers’ childhood nicknames for each other. Prince of Wales is known as "Willy" while the duke’s nickname is "Harold”.

In the memoir, Princess Harry recounts going to see a woman who claimed to have powers to relay a message from his late mother, Princess Diana.

Prince Harry also shares in his book that he became a fanatic of the best sitcom of all time. He seems to fit Matthew Perry’s character Chandler.

According to Prince Harry, the Duchess of Sussex suggested to the Princess of Wales that it might be "baby brain" when Princess Kate said she had forgotten something inconsequential.

Buried amongst the revelations coming out of the book, Meghan Markle asked to borrow Kate Middleton’s lip-gloss at the Royal Foundation Forum in 2018. This made Princess Kate grimace.

Based on the book, Prince Harry claimed that his brother Prince William and his future sister-in-law, Catherine Middleton advised him to wear his Nazi uniform.

During the birth of his firstborn Archie Harrison Mountbatten-Windsor, the Duke of Sussex, reveals in his autobiography that he used to laugh gas to enhance his calm.

In his memoir, the Duke of Sussex claims he hallucinated that a bin was talking to him on a trip to California in 2016.

The Duke of Sussex also details the moment he wet his pants just hours before he met his wife, Meghan Markle for their first date.

One of the biggest buzz-worthy revelations is the fight between Prince Harry and Prince William in which his brother grabbed him by the collar, ripped his necklace, and knocked him to the floor.

Another biggest revelation in “Spare” is Prince Harry’s desire to drive through the same Parisian tunnel at the same speed where his mother, Princess Diana, had passed away in 1997.

Harry admitted in his writing that he was initially hesitant to accept that his mother had passed away and thought that perhaps she had faked her death.

In his memoir, Prince Harry mentions verbal and even physical arguments between William and himself, referring to William as his "beloved brother and arch nemesis."

For his royal wedding to Meghan in 2018, The Duke of Sussex reveals that he had to ask his late grandmother, Queen Elizabeth II, for her approval to keep his beard.

The prince made a point to draw attention to Prince William's alarming baldness. He reportedly said in his book that his brother’s baldness was more advanced.