 After World War I, as soon as the Italian kingdom expanded its borders eastwards (including vast slavophone territories in Istria and in the so-called Habsburgic Illyrian kingdom), the region started to be commonly called "Slavia Friulana" instead of a generic "Slavia Italiana".In the early 8th century Slavic tribes settled within the border of the Lombard Duchy of "Forumiulii".Paulus Diaconus, a Lombard historian at the court of Charlemagne, mentioned the local Slavs from the region in his magnum opus "Historia Langobardorum".