Duchy of Carniola
The Duchy of Carniola (Slovene: Vojvodina Kranjska, German: Herzogtum Krain, Hungarian: Krajna) was an imperial estate of the Holy Roman Empire, established under Habsburg rule on the territory of the former East Frankish March of Carniola in 1364. A hereditary land of the Habsburg monarchy, it became a constituent land of the Austrian Empire in 1804 and part of the Kingdom of Illyria until 1849.