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The king transferred his court to to potsdam to be free from the liberal provisional government.
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Dominance of Austria was challenged by Prussia and the procces of unification of Germany began.
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Otto von bismarck was appointed chancellor of prussia by King William I.
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King christian vii of denmark formally incorporated the duchies of schleswig-holstein into the danish kingdom, breaking the terms of the treaty of london of 1852.
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In 1866 arguments about the administration of schleswig-holstein led to war breaking out between Austria and Prussia.
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Relations between prussia and france worsened. France wanted compensation in belgium and lexemburg for having stayed neutral in the Austro-prussian war.