Eugenie and Beatrice were not allowed to see their cousins William and Harry. Brown alleges that this came after a falling out between Fergie and Diana, MyLondon reports.
Princess Diana is said to have 'fatwa'd' her sister-in-law 'for revealing she had developed verrucae after borrowing Diana's shoes'.
The royal biographer says in Woman and Home that this is one of the many examples where Princess Diana had developed a habit of 'cutting out people' in her sons' lives. Read more: Princess Anne may want to retire says expert as Princess Royal approaches her 72nd birthday on MondayShe writes that the pattern continued 'throughout their childhood' and even included their own cousins, Beatrice and Eugenie.
The author adds in her book that, despite Princess Diana clearly being devoted to her two boys, 'there was a destructive side to Diana’s mothering'.