Thesis title: Patrimoni frammentati: per una digitalizzazione e catalogazione dei frammenti di riuso eugubini
The doctoral thesis falls within the field of Heritage Science and aims to study and enhance a particular segment of the manuscript heritage: reused fragments. This phenomenon, widespread across various areas of culture, in this case refers to portions of ancient codices that were dismembered and repurposed as binding or reinforcing materials in later volumes and registers. The research focuses on the cultural institutions of Gubbio (Perugia), examining the *Fondo Antico* of the Sperelliana Municipal Library and the notarial and judicial collections of the Gubbio branch of the State Archives. After providing a historical and critical overview of the collections and an analysis of the most recent cataloguing methodologies in the field, the core of the research consists of a systematic survey of the manuscript fragments preserved in these collections, along with the cataloguing and digitization—on Fragmentarium—of a specific corpus, namely those dating from the 11th and 12th centuries. On this basis, paleographic and codicological reconstruction hypotheses are formulated, aimed at establishing connections between the original codices from which the fragments derive. The final goal of the thesis is twofold: on the one hand, to enrich the understanding of this “hidden” and fragmented heritage; on the other, to define a replicable methodological model for the digitization and cataloguing of reused fragments, thereby contributing to their accessibility and full scholarly appreciation within the academic community.