<p>An intimate of the Duke and Duchess of Windsor, Diana Mosley was a frequent guest at their parties in Paris, or at 'the Moulin' in Orsay, where they were neighbours. Written in her inimitable style Diana Mosley paints a remarkable portrait of her friend that is also realistic with regards to her flaws. What was it about her that utterly captivated the heir to the throne and made him renounce it when he became King? It is this question which Di...