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Prince Karl Aloys was Imperial and Royal Cavalry Master ( Rittmeister ) until the end of the monarchy of Austria-Hungary and from 13 December 1918 to 15 September 1920 temporarily Prime Minister ( Landesverweser ) of the Principality of Liechtenstein .
 Prince Karl, Austria-Hungary, Principality of Liechtenstein
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Answer:
 Prince Karl, Austria-Hungary, Principality of Liechtenstein