Principality of Leyen

Principality of Leyen
Fürstentum Leyen
Client state of the French Empire
Member of the Confederation of the Rhine
Flag Coat of arms
The Principality of Leyen, shown within the Grand Duchy of Baden
Capital Hohengeroldseck
Government Principality
Prince Philip Francis
Historical era Napoleonic Wars
   County of Adendorf raised to principality 1806
   Mediatised to Austria by Congress of Vienna 1814
  Granted to Baden 1819
Preceded by
Succeeded by
County of Adendorf
Austrian Empire

The Principality of Leyen was a Napoleonic German state which existed 1806–14 in Hohengeroldseck, in the west of modern Baden-Württemberg. The House of Leyen had acquired many districts in western Germany, and eventually these were inherited by the Leyen line of counts at Adendorf. In 1797, France defeated the Holy Roman Empire and all lands west of the Rhine were lost. Following the defeat of Austria in 1806, Count Philip Francis of Adendorf was raised to a Prince, and his lands were renamed to the 'Principality of Leyen'. The territory formed an enclave surrounded by Baden. Prince Philip Francis, like many other members of the Confederation of the Rhine became largely a French puppet, so following Napoleon's defeat at the Battle of Leipzig in 1813, the Congress of Vienna opted to mediatise his realm and give it to Austria. In 1819, Austria traded it to Baden.

Prince of Leyen

Heads of the House after Mediatization[1]

  • Philip Franz, 1st Prince 1806-1829 (1766-1829)
    • Erwein, 2nd Prince 1829-1879 (1798-1879)
      • Philip, 3rd Prince 1879-1882 (1819-1882)
        • Erwein, 4th Prince 1895-1938 (1863-1938)
          • Erwein, 5th Prince 1938-1970 (1894-1970)
            • Wolfram Erwein, Hereditary Prince of Leyen and zu Hohengeroldseck (1924-1945)
            • Princess Marie-Adelheid (1932-2015)
              • Philipp Erwein, 7th Prince 1971–present (b.1967)
                • Wolfram, Hereditary Prince of Leyen and zu Hohengeroldseck (b.1990)
                • Prince Georg (b.1992)
          • Ferdinand, 6th Prince 1970-1971 (1898-1971)
  • Map of the Grand Duchy of Baden, showing the Principality of Leyen in grey, mid-left


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