A central duchy of Austria, stretching in a semicircle from Upper Austria and Salzburg on the NW. to Croatia and Slavonia on the SE., and flanked by Hungary on the E.; a mountainous region crossed by various eastern ranges of the Alpine system, and drained by the Drave, Save, Inn, and other rivers; more than half lies under forest; agriculture flourishes, but mineral products, iron, salt, coal, &c., constitute the chief wealth. The principal manufactures are connected therewith; was joined to the Austrian crown in 1192.