By Jennifer Newton & Emma Mackenzie Prince Harry seemingly left no holds barred about his relationships with his older brother Prince William in his controversial book, Spare, with whom he has had a strained dynamic for some years. From details about a physical altercation between the pair at Kensington Palace to a tense showdown at Prince Philip’s funeral and tension between the brothers and their wives, Kate and Meghan, Harry didn’t seem afraid of being candid when it came to his familial relationships. However, it seems that perhaps the content in the book was just the tip of the iceberg as…