Hohenzollern-Hechingen – Flag in Lexicon and Shop https://www.flaggenlexikon.de/fdthoheh_me.htm
The Principality of Hohenzollern-Hechingen existed between 1623 and 1848. It became part of the Prussian administrative district of Hohenzollernsche Lande in 1850. The flag showed the colors black and white.
Nations) 1814–1815 · Vienna Congress, reorganization of Europe