Pannonia

Pannonia, a province of the Roman Empire, lying south of the Danube and north of Dalmatia and Moesia Superior, and corresponding to S.W. Hungary and parts of Lower Austria, Styria, and Carniola, with Croatia and Slavonia. It was first subjugated in 8 A.D., and the legionaries stationed there rebelled in 14 A.D. and were quelled by Drnsus. Under Trajan the province was divided into Pannonia Superior and Pannonia Inferior. Diocletian substituted a fourfold division including Valeria and Suavia. Vindobona (Vienna) was the chief city of Upper Pannonia, and Sirmium (Mitrovic) in Lower Pannonia often served as a residence of the later emperors. The Huns wrested the province from Theodosius- it was afterwards overrun by Ostrogoths, Longobards, and Avars.