The Austrian Empire (Austrian German: Kaiserthum Oesterreich, modern spelling Kaisertum Österreich) was created out of the realms of the Habsburgs by proclamation in 1804. It was a multinational empire and one of the world's great powers. Geographically it was the second largest country in Europe after the Russian Empire (621,538 square kilometres [239,977 sq mi]). It was also the third most populous after Russia and France, as well as the largest and strongest country in the German Confederation. Proclaimed in response to the First French Empire, it overlapped with the Holy Roman Empire until the latter's dissolution in 1806. The Ausgleich of 1867 elevated Hungary's status within the Austrian Empire, creating a new dual monarchy of Austria-Hungary.