Dörverden
Dörverden is a municipality in the district of Verden, in Lower Saxony, Germany. It is situated on the right bank of the Weser, approx. 8 km south of Verden, and 40 km southeast of Bremen.
Bremen-Verden
The political entities of the Prince-Archbishopric of Bremen and the Prince-Bishopric of Verden were transformed by the Peace of Westphalia in 1648 into the "Duchy of Bremen" and the "Principality of Verden", however, colloquially the Duchies of Bremen and Verden, without changing the territories' status of imperial immediacy and imperial estate. Every imperial estate, thus Bremen and Verden separately, was represented in the Diet () of the Holy Roman Empire. The formerly Free Imperial City of Verden upon Aller was mediatised by the Peace of Westphalia and incorporated into the Duchy of Verden.