Брауншвейг-Вольфенбюттель
The Duchy of Brunswick had been established after the 1814 Congress of Vienna, as a sovereign successor state of the German Confederation. It roughly comprised the incoherent territory of the former Principality of Brunswick-Wolfenbüttel, stretching from Holzminden on the Weser River in the west to Blankenburg in the Harz mountain range and Calvörde in the east.