Flag of Germany
When Heinrich XI, Prince Reuss of Greiz was appointed by Joseph II, Holy Roman Emperor to rule the then-new Principality of Reuss-Greiz on 12 May 1778, the flag adopted by the "Fürstentum Reuß-Greiz" was the first-ever appearance of the black-red-gold tricolour in its modern arrangement in any sovereign state within what today comprises Germany – the Reuss elder line that ruled the principality used a flag whose proportions were close to a "nearly square"-shape 4:5 hoist/fly ratio, instead of the modern German flag's 3:5 figure.
Coat of arms of Germany
The republican Reichsadler is based on the Reichsadler introduced by the Paulskirche Constitution of 1849, which was decided by the German National Assembly in Frankfurt upon Main, at the peak of the German civic movement demanding parliamentary participation and the unification of the German states. The achievements and signs of this movement had been mostly done away after its downfall and the political reaction in the 1850s. Only the tiny German Principality of Waldeck-Pyrmont upheld the tradition and continued to use the German colours called Schwarz-Rot-Gold in German ().