Illyricum (Roman province)

Illyricum was a Roman province created by Augustus in 27 BC to secure the northeastern Adriatic frontier. It combined Upper Illyricum (Dalmatia) and Lower Illyricum (Pannonia) under a governor resident at Salona, administering coastal and Danubian territories across what are now Albania, Bosnia and Herzegovina, Croatia, Hungary, Kosovo, Montenegro, Serbia, and Slovenia.