Karl Freiherr Haus von Hausen (29 September 1823 – 29 July 1889) was an Austrian noble and civil servant who served as the Governor of Liechtenstein from 1861 to 1884.

[3] In this position, he acted as a mediator between the constitutional council and Johann II, and he also managed to maintain public trust in the government.

[1][2] The draft was reviewed by an unknown German legal expert and formed the basis of the 1862 Constitution of Liechtenstein, which was ratified on 26 September.

[1] In addition, during Hausen's time as Governor, the Landtag came into political conflict with Johann II, primarily regarding foreign policy.

For example, during the Second Schleswig War in 1864, Johann II supported the cause of both Austria and Prussia, whereas the Landtag had protest voted against the use of military force against Denmark.

[8] It was this, in combination to the rising costs of maintaining it, that led to the Liechtenstein military being disbanded in 1868 and the country declaring its permanent neutrality.