Prince Harry has made a lot of revelations in his much-anticipated memoir, "Spare," after some publications obtained the book through a "stringent pre-launch security." One of the exposés the Duke of Sussex made was his physical altercation with his brother, Prince William, and it reportedly ruined any hope for reconciliation between the two.

Palace insiders claimed that Prince William is enraged by the details his younger brother revealed in "Spare" that he would never forgive Prince Harry anymore. Though the book would not be out until January 10, some explosive revelations against the royal family now appeared and circulated online.

The sources told Vanity Fair that among the many revelations the Duke of Sussex made, Kate Middleton's husband is most upset about his decision to include their brawl in 2019. The tipsters added that the Prince of Wales has a huge trust issue with his brother, worrying that any communication he had with him, especially the private ones, would be publicized.

Hence, one insider revealed that the Duke of Cornwall had no plans to comment or react to the claims of Meghan Markle's husband. He allegedly planned to "ride this all out," knowing at the end of the day, he would still be the Prince of Wales, on which he has put his focus.

In the excerpts obtained by The Guardian and Page Six, Price Harry called Prince William his "archenemies" and revealed he had been "gone forever" after he married Kate Middleton. He even claimed the couple told him to wear the infamous Nazi costume.

Their fight began when the "piping hot" heir to the throne attacked him at the kitchen of his Kensington Palace after the former allegedly called the Duchess of Sussex "difficult," "rude," and "abrasive."

They then had a shouting match and started exchanging insults. Prince William claimed he was only trying to help, which Prince Harry questioned, and it only furthered Prince William's anger.

Though Prince Harry offered him a glass of water to calm down, telling him he couldn't speak to him like this, Prince William grabbed him by the collar. The latter ripped his necklace and knocked him to the floor, landing Prince Harry on the dog's bowl that cracked under his back and cut him.

When he returned to his senses, Prince Harry asked Prince William to get out, but the heir apparent just urged him to fight back. The former senior royal refused.

Prince William later returned to apologize, asking him not to tell Meghan Markle about it. However, the former actress still learned what happened after seeing her husband's scrapes and bruises on his back. Though she wasn't surprised or angry, the former "Suits" star was said to be "terribly sad."