In the crypt of the Medici Chapel in Florence, palaeopathologist, Edie Granger, and her uncle, Carlin Mackenzie, are examining the mummified remains of one of the most powerful families in Renaissance Italy.The embalmers have done their work well in terms of outward appearance. But under the crisp skin, the organs have shrivelled to a fraction of their original size, which means it is difficult to...