L’ultimo libro del Sapientiale, testimone di un’opera in fieri

This paper analyzes the concluding book of Thomas of York’s Sapientiale, within the framework of the ongoing critical edition project. The complex relationships between manuscripts F, R, and V reveal an in fieri editorial situation and constant authorial revision. Drawing on textual and paratextual evidence, the study confirms the stemma proposed by Fiorella Retucci and Antonio Punzi and offers an integrative interpretation of the work. The paper shows that the editorial shifts reflect a deep doctrinal reconsideration of the project, grounded in the maturation of the distinction between ens in generali and ens in speciali. This distinction is key to the inclusion and ordering of the final arguments, such as cosmology, celestial intelligences, and the soul. Finally, on the basis of the structure of manuscript V, the study supports the hypothesis that the correct numbering of the concluding book was originally the sixth rather than the seventh.