The main territories ruled by the Habsburgs included modern Austria, Slovenia, southwestern Germany, northeastern Germany, parts of Italy and Hungary. The Habsburg Empire ruled over multiple territories in Europe, many of which changed from time to time, over the centuries.
The term Habsburg Empire refers to the countries and provinces ruled by the Austrian or Habsburg monarchy from 1526 to 1867. From 1867, the Empire is referred to as the Austro-Hungarian Empire. Besides the main territories, the Empire also extended on territories that are nowadays part of Belgium, the Czech Republic, Romania, Ukraine, Poland, France, the Netherlands, Serbia, Switzerland, Luxembourg and more. The official language of the Empire was German, which replaced Latin in 1784.