Guilelmus Naso 

Biography

• was pupil of Alanus according to Durantis and Hostiensis.
• studied in Bologna at around 1220 and taught there at around 1227,

Activities as Canonist

• Lectura in decretales
• Distinctiones

Introductory Secondary Literature

• see entry at: Bio-Bibliographical Guide to Medieval and Early Modern Jurists
• SCHULTE, Johann Friedrich von: Die Geschichte der Quellen und Literatur des Canonischen Rechts. Von Papst Gregor IX. bis zum Concil von Trient, Ferdinand Enke, Stuttgart 1877, pp.78-80.