By Joseph Wilkes & Rebecca Russell Princess Charlotte and Prince Louis have two “perfect” role models in the shape of two unlikely royals – who are themselves “spares to the spare”. The young royals, who could be considered the “spares” to future King, Prince George, the first born child of Prince Wiliam and Princess of Wales, Kate Middleton, should look to Prince Edward, the new Duke of Edinburgh, and his wife Sophie, Duchess of Edinburgh, for how to go about their life as working royals. Edward and Sophie have been hailed as the perfect role models for Charlotte and Louis due to their succes…