The late lamented John Julius Norwich weaves a colourful story of four great princes who were born within a single decade. Henry VIII, Francis I of France, Charles V of Spain and Suleiman the Magnificent were sometimes friends, but more often enemies. From the Field of the Cloth of Gold, Francis and Henry’s extravagant pageant, to Suleiman’s celebratory pyramid of 2000 human heads, this is history at its most vivid.