The fall from grace began with a stumble.

In April 2012, on a holiday in Botswana, King Juan Carlos of Spain was walking up a set of steps when he slipped, fell—and broke his hip. The fracture was excruciating for the 74-year-old monarch. But there would be little time for sympathy. As the king was whisked back to Madrid by private jet for treatment, the full gory details of his until-then-secret jaunt began to emerge. Almost immediately, it was revealed that he had been visiting Botswana for a high-end safari-hunting trip; that he had been accompanied by a German-Danish mistress; that he had been bankrolled by a shadowy Saudi Arabian tycoon; and—worst of all—that he had been shooting elephants for sport.