L’età medievale. Il notarius mediatore fra comunità e autorità

The essay aims to describe the characteristics of the documents drawn up by notaries in the early middle ages and the role they played to enlight the way they mediated between their communities and new born autorities of the communes during XIth and XIIth centuries. In fact, in italian towns their role as officials who ensured the authenticity of the documents made them leaders in social, economic and political life: Rolandino Passeggeri is a shining example.