As a member of the
German-Liberal Party, Karl represented the landed nobility in the
Bohemian Landtag (provincial assembly) during the 1840s and took a conspicuous part in defending the constitutional system against
Prince Metternich's
Vormärz regime, which was becoming increasingly unpopular throughout the
Austrian Empire and ultimately culminated in the
German revolutions of 1848–1849. In the following decade, after the resignation of Metternich as first minister and the abdication of Emperor
Ferdinand I in favour of Emperor Franz Joseph I, Karl remained largely absent from public life.
Constitutional era On the advent of the new constitutional era in 1861, Franz Joseph I established a bicameral
Imperial Council in the Austrian Empire and appointed Karl as the first President of the
House of Lords. Karl became the longest serving president over his three terms in office (1861–1867, 1896–1870, 1871–1879). In 1861 Karl also rejoined the Bohemian
Landtag where he served intermittently as
Oberstlandmarschall (supreme provincial marshal) of Bohemia and as chairman of the
Landesausschuss (state committee) until 1883. After his retirement, Karl worked as a zealous supporter of the policies of his brother,
Prince Adolf of Auersperg, who served as Prime Minister of Austria from 1871 to 1879. ==Personal life==