How many "great duchies" exist in the World?
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Currently, the only remaining "Grand Duchy" is the Grand Duchy of Luxembourg. The name comes from the title of a monarch - Grand Prince, what means the fully independent prince (yet, not a king). In the past, there were more "Great duchies": Grand Duchy of Kiev, Grand Duchy of Lithuania, Grand Duchy of Tuscany, Grand Duchy of Salzburg
reach: rather globalgeographyhistoryLuxembourg
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