"From the ages of four and two, William and Harry grew up in the care of two parents who were not sharing the same bed, who were more inclined to talk to the press than to each other, and who were also engaging in patterns of systematic deceit," Robert Lacey writes in his book.
According to Lacey, William started to become "more reflective" and a "noticeably quiet character—definitely introverted", while the once quiet Harry became "rambunctious".
Robert Lacey continued: "Ken Wharfe, bodyguard to Diana and the two boys in the late 1980s, recalls a telling incident when the family was travelling from London to Highgrove for the weekend. According to Wharfe, Harry and his brother got embroiled in an argument in the back seat of the car, with their nanny vainly seeking to referee the dispute. 'You’ll be king one day,' said the four-year-old Harry. 'I won’t. So I can do what I want.'"
Here’s hoping the two brothers can put everything in recent years behind them.
This article originally appeared on Marie Claire U.K.