Harry says he told his brother he was just regurgitating media narratives and he expected better from William ... and then they got into a shouting match before things ultimately got physical.
Prince Harry says he accused William of acting like an heir and being unable to understand him ... and they exchanged insults, then went into the kitchen, where the alleged attack happened.
Harry goes on to say the alleged fight left him with visible injuries because he fell and landed on a dog bowl, which cracked under his back ... according to excerpts of the book obtained by The Guardian.
What's more, Harry claims William urged him to hit him back, bringing up fights they had when they were younger ... but Harry says he refused to strike his brother. William then bounced, but came back "looking regretful" and apologized.