This project aims to carry out a comprehensive study of the linguistic mechanisms that ensure referential cohesion within texts, with a particular focus on textual anaphora and anaphoric chains in medieval Italian prose. Special attention will be given to how these anaphoric structures interact with the semantic-pragmatic organization of the text and the informational structure of the utterance, drawing on the interpretative frameworks developed within the Basel Model of textual analysis. On one hand, the study will provide new insights into the concept of textual cohesion in early Italian, an area that has remained largely unexplored from a textual perspective. On the other hand, it will contribute to the diachronic expansion of modern tools for textual analysis, further establishing diachronic textual linguistics as a distinct discipline with its own goals and methodologies. Lastly, the project will create a digital, annotated corpus focusing on the informational structure of the utterance, which will become an essential resource for future studies on early Italian from a textual and functional standpoint.