After the dissolution of the Holy Roman Empire in 1806, the double-headed eagle was retained by the Austrian Empire, and served also as the coat of arms of the German Confederation. The German states of Schwarzburg-Rudolstadt and Schwarzburg-Sondershausen continued to use the double-headed eagle as well until they were abolished shortly after the First World War, and so did the Free City of Lübeck until it was abolished by the Nazi government in 1937. Austria, which switched to a single-headed eagle after the end of the monarchy, briefly used a double-headed eagle – with haloes – once again when it was a one-party state 1934–1938; this, too, was ended by the Nazi government. Since then, Germany and Austria, and their respective states, have not used double-headed eagles.