Gorizia and Gradisca
From 1754 onwards, the region belonged to the Princely County of Gorizia and Gradisca, a crown land of the Habsburg Monarchy. When in 1809 Napoleon created the short-lived French Illyrian Provinces, he drew the border with the re-established Kingdom of Italy in the west along the Soča/Isonzo River. After the 1815 Congress of Vienna, the entire crown land of Gorizia and Gradisca with Trieste and the March of Istria as well as Carinthia and Carniola formed the Austrian Kingdom of Illyria with its capital at Ljubljana ("Laibach").