What was the main reason for the personal union between Brandenburg and Prussia to continue until 1806?
Economic benefits
Political stability
Legal fiction of the emperor's overlordship
Religious unity
Answer
The personal union between Brandenburg and Prussia continued until the dissolution of the Holy Roman Empire in 1806 due to the legal fiction of the emperor's overlordship over the empire. However, after 1701, Brandenburg was de facto treated as part of the Prussian kingdom.
Discovering the Powerhouses of Brandenburg-Prussia: A Historical Quiz