The Prince of Wales has refused to comment after claims he attacked his brother during a heated argument.
The bombshell claim was reported by The Guardian, which says it has seen a copy of his upcoming memoir ahead of its release later this month.
The confrontation was alleged to have happened in 2019 - a year into the couple's marriage - where Harry was grabbed and knocked to the ground.
Duke Harry wrote that he was left with cuts and scratches to his back after he was grabbed by the collar in the heated brawl at Nottingham Cottage in London, where the couple were living at the time.
The two brothers' relationship was already "piping hot" when William arrived, with Harry writing he had tried to calm his brother down saying, "Willy, I can't speak to you when you're like this".
The leaked passage writes: "He set down the water, 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.”
Prince William has refused to comment on the latest explosive claims, which already follow Harry and Meghan's Netflix documentary released last month.
In the six-part series, the couple continued to make accusations of being cast out by the Royal Family.
In a brief statement this morning, Kensington Palace declined to comment on the claims.
