King Charles and Queen Camilla will begin a four-day state visit to Italy on Monday following following Charles' hospital stay last week. The royals will visit Rome and the city of Ravenna, as they use the "soft power" diplomacy of the monarchy to strengthen Britain's relationship with its ally. A separate state visit to the Holy See in the Vatican has been cancelled as Pope Francis is recuperating after leaving hospital following treatment for double pneumonia. With a number of Vatican events removed from the itinerary in Rome, the remaining engagements in the Italian capital have been spread over two...