Principality of Altenburg

The Principality of Altenburg was a principality in what is now Thuringia .

The first traces of the Principality of Altenburg can be found in the Treaty of Naumburg in 1554 . In 1603 the principality becomes part of the newly founded duchy of Saxony-Altenburg . When the ducal family expired in 1672, the duchy was divided. The Principality of Altenburg comes to the Duchy of Saxe-Gotha , which is then called Saxe-Gotha-Altenburg .

From 1820 to 1825 the principality was a central authority of the Duchy of Saxe-Gotha-Altenburg. The Principality of Altenburg had the function of an administrative district with the seat of government in Altenburg . The Principality included the regions of Camburg and Stadtroda as well as the exclaves Treppendorf , Vierzehnheiligen , Lichtenhain , Mosen , Mumsdorf , Neukirchen , Rußdorf , Röpsen , Ammelstädt , Saalthal , Schweinitz and Hilbersdorf .

In 1820 the principality had a total area of ​​1,370 km². 26,725 inhabitants lived in it.

When the Duchy of Saxony-Gotha-Altenburg had expired in 1825, Duke Friedrich von Hildburghausen received the entire Principality of Altenburg with the exception of the Camburg Office and some villages from the Eisenberg District Office (northern part) in an inheritance agreement dated November 12, 1826 . He founded the new Sachsen-Altenburg line .