The Kingdom of the Two Sicilies, a chapter in the history of pre-unification Italy in many ways surprising and little known. In fact, among all the Italian Kingdoms, that of the Two Sicilies was by far the largest, richest and most populated. Almost 10 million people, that is to say one in three inhabitants of our peninsula, lived under the aegis of the House of Bourbon. And Naples was the heart of this kingdom: it was one of the largest cities in Europe, second only to Paris, the fifth in the world, a destination for scholars and travelers of the time. In this episode we will discover why the Bourbon kings, as loved and respected sovereigns, were then fiercely fought by their people and why their kingdom, rich in economic records, technological achievements and cultural treasures, has gone down in history as a closed and retrograde world , responsible for the evils that still afflict our south.