The queen, the cardinal and the greatest con France ever saw
You usually know where you are with a book that promises the story ‘would violate the laws of plausibility’ if it appeared in a novel, and that’s in deep trouble. In the case of How to Ruin a Queen, however, this is a boast with a surprising amount of substance to it. You could make it up — just about — but you’d probably have a very sore head afterwards. In 1786 Cardinal Louis de Rohan, Grand Almoner of France and scion of one of the country’s leading families, went on trial accused of having stolen a 2,800-carat diamond necklace. This was serious enough, but what was far more serious
