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.
Flags and arms of cantons of Switzerland
After this, Glarus used the image of the saint in its banners. During the 15th and 16th century, these images varied considerably. Only by the beginning 17th century a standard design was established, showing the Saint as a pilgrim in silver on a red field.
The modern design shows the pilgrim in black, inspired by a banner shown in Glarus claimed as the original banner of 1388.
The current official design dates to 1959.
First recorded in 1319.