The Counts Reuss of Gera, of Schleiz, of Lobenstein, of Köstritz and of Ebersdorf, each became princes in 1806, and they and their reigning successors bore the title Prince of Reuss-Gera.
The Reuss Elder Line died out with the death of the childless Heinrich XXIV in 1927, after which its claims were passed to the younger line.
Principality of Bulgaria | Principality of Ansbach | Reuss | Principality of Lüneburg | Principality of Auersperg | Reuss (state) | Principality of Polotsk | Principality of Orange | Principality of Yaroslavl | Principality of Pereyaslavl | Principality of Calenberg | Hermine Reuss of Greiz | Principality of Lippe | Principality of Grubenhagen | Principality of Sealand | Principality of Piombino | Principality of Kiev | Principality of Catalonia | Principality of Anhalt-Zerbst | Theodor Reuss | Reuss-Lobenstein | Principality of Zeta | Principality of Transylvania | Principality of Lichtenberg | Principality of Hungary | Principality of Halberstadt | Principality of Brunswick-Wolfenbüttel | Tabasaran Principality | Serbian Grand Principality | Reuss (river) |
He was sent as representative of the Austrian imperial court to the principalities of Sachsen-Weimar-Eisenach, Nassau, Braunschweig, Oldenburg and Reuss.