Wikipedia
Neo-medievalism
Neo-medievalism (or neomedievalism) is a neologism that was first popularized by the Italian medievalist Umberto Eco in his 1986 essay "Dreaming in the Middle Ages". Prior to this the term was used in Isaiah Berlin's " The Hedgehog and the Fox" to refer to a nostalgic romanticism for the simplicity and order of the medieval period.
In its modern use, it has been used by various writers such as medieval historians who see it as the intersection between popular fantasy and medieval history; as a term describing the post-modern study of medieval history; and as political theory about modern international relations.