#Austria-Hungary
- Agram — The historical German name for the city of Zagreb, the current capital of the Republic of Croatia; widely used during the Holy Roman Empire and the Austro-Hungarian Empire, reflecting the central European administrative history of the locality.
- Austria-Hungary — A multinational imperial state and dual monarchy in Central Europe that existed from 1867 to 1918, established following the constitutional compromise between the Austrian Empire and the Kingdom of Hungary under the House of Habsburg-Lorraine. Characterized by a unique administrative structure with two capitals (Vienna and Budapesta), vast ethnic diversity, and major geopolitical influence, it dissolved at the end of World War I.