How did Alessandro Manzoni’s The Betrothed contribute to modern Italian prose?

Alessandro Manzoni’s The Betrothed (I promessi sposi) played a pivotal role in the development of modern Italian prose by addressing the country's long-standing "language problem." During the 19th century, written Italian was often remote and academic, inaccessible to the general public.

To make his novel accessible to a wide readership, Manzoni undertook a painstaking process of revision to align his language with modern, educated Florentine speech. By moving away from both archaic literary conventions and provincial dialects, he created a clear, expressive prose style that was neither pretentious nor provincial. This effort successfully provided a common means of communication for diverse social groups across Italy.

The novel’s immense popularity demonstrated the effectiveness of this approach, establishing it as a model for later writers. While Manzoni’s success eventually led to a new, sometimes affected form of "Manzonian" purism, his work remains a landmark achievement in the modernization and unification of the Italian language.1