Fürstenberg

The County of Fürstenberg was a Swabian imperial state in the Black Forest and Baar, near the Danube's source. In 1337 the family ruled lands named after Fürstenberg Castle, following the separation of Villingen in 1284.

The county split again in 1408 into Fürstenberg and Wolfach lines. The Heiligenberg line gained princely rank in 1664 and an imperial Diet vote in 1667. After other lines died out, the lands were reunited in 1744 as a principality ruled from Donaueschingen. The 1806 Rheinbund Act dissolved it, assigning most of its territory to Baden.