The essay deals with the Czechoslovak state's measures put in place against the properties of the Liechtenstein primogeniture shortly after the liberation of the country in 1945. It analyzes the reasons behind these steps, which are apparent in the negative relationship the Czech society had towards to the family connected with events in Bohemia following the Battle of White Mountain (1620) but also in the treatment of the German speaking population in Bohemia after the Second World War (the transfer/expulsion of Germans). This all happened without regard for the foreign citizenship and status of the Liechtensteins as a ruling family in the independent Liechtenstein Principality that had remained neutral during the war. The author also links the implementation of the national administration to the post-war shift of Czechoslovak politics to the left and points to the communist-run Ministry of Agriculture, which had made the decision on the above measures. In large part the essay also deals with the defense of the Liechtensteins using diplomacy, especially to the role that Swiss diplomacy played as well as to the fruitless attempts made by the family to positively influence Czech administration.