Bradby referenced an odd brotherly disagreement detailed in "Spare" surrounding Harry's facial hair on his wedding day. While initially this might seem superficial, there was an underlying power struggle between them playing out behind closed doors.
"This beard felt to me at the time felt like the new Harry. As almost like a shield to my anxiety," he says. William had been told to shave his beard off for his own wedding, and so reportedly felt annoyed that the Queen allowed Harry to keep his facial hair.