Rumours of a feud between Princes William and Harry round have been swirling ever since the younger brother said 'I Do' and married Meghan Markle.
Reports following Harry's departure from the Royal Family in 2020 claimed the brothers' relationship had become strained after the Duke of Cambridge advised Harry to take things slowly with the American actress.
Biographer Tom Bower's new tell-all book, Revenge: Meghan, Harry and the War between the Windsors, details how Harry failed to notify the rest of the royals when he changed his mobile number.