Romolo Caggese's first volume is a work of medieval history examining the Kingdom of Naples under Robert of Anjou in the early fourteenth century. Rather than treating the monarch solely as a biographical subject, it investigates the political institutions and economic and social conditions that shaped his rule. Chapters address Robert's vicariate, defence of the state, social classes and conflicts, municipal autonomy, production and trade, and public finance and the court. The study combines political narrative with an analysis of administrative structures and relations between central authority and local communities. First published in 1922, it remains an example of early twentieth-century Italian historiography..