Abstract

In modern age law presents a radical metamorphosis and it is composed of a series of imperatives which are commands more and more tied to political power and to the State. This legal monism forbids a real pluralism. On the contrary, in the Middles Ages law is marked by a plurality of sources, strongly linked to social and economic events, in no way reducible to formal norms. Law is not a mirror of empirical reality, but it is connected with the search of equitable issues and therefore relies on the leading principle of justice.