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.
Flag of Adygea
The original design of the flag was drawn in 1830 by prince Zanoque, Seferbie. was hand delivered to the Adyghe Nour Mohamed Hag'ur by the British delegate James Stanislaus Bell in Gesh Valley (Current day: Sochi) where it flew for the first time among cheers by Adyghe princes and a multitude of people. This design was used by the Adyghe people in the 19th century fight against the Russian Empire. The present-day flag was adopted on March 24, 1992. The proportions are 2:1.