Kingdom of the Ostrogoths, the Kingdom of the Lombards, the Kingdom of the Avars, the Slavic state of Samo, the Frankish Empire, the Principality of Lower Pannonia (9th century), and Arnulf's Kingdom of Carantania (9th-10th century). In the late 10th century it was invaded by the Hungarians and was under administration of the medieval Kingdom of Hungary until the 16th century, when former territories of this kingdom were divided between the Habsburg monarchy and the Ottoman Empire. Since then, Prekmurje was mostly under administration of the Habsburg Monarchy, with brief periods of Ottoman administration. Following the dissolution of the Habsburg monarchy in 1918, the region was firstly included into the Hungarian Democratic Republic and subsequently into the Hungarian Soviet Republic. In 1919, it proclaimed independence as the short-lived Republic of Prekmurje and was subsequently included into the Kingdom of Serbs, Croats and Slovenes (later known as Yugoslavia). From 1941 to 1945, Prekmurje was temporarily occupied by the Axis Powers and in 1945 it was included into the new socialist Yugoslavia. Since 1991, it is part of an independent Slovenia. Antiquity to Middle Ages During the Roman administration, the region was part of the province of Pannonia. Although, earlier Slavic settlements had existed in the area, the ancestors of modern Slovenes moved from eastern Alps and settled in Prekmurje after the Franks defeated the Avars during the reign of Charlemagne. In the 9th century, this area was part of the Slavic state known as the Principality of Lower Pannonia. The center of this state was in the city of Blatnograd near Lake Balaton. The principality was later dissolved and integrated in the Kingdom of Carantania established by the German Emperor Arnulf of Carinthia. This political entity in which all the ancestors of modern Slovenes were united under one ruler was soon destroyed by the Hungarian invaders who conquered the Pannonian plain and who incorporated Prekmurje into the Kingdom of Hungary. The area inhabited by Slovenes shrank to the present extent by the end of the 12th century and has remained stable since. In the 11th century, during Hungarian administration, the region was part of the Kolon county. Between the 11th century and 1526, it was divided between Vas County and Zala County. In the end of the 13th and beginning of the 14th century, during the collapse of the central power in the Kingdom of Hungary, the region was part of