What title did George III hold in the Holy Roman Empire?
Duke and Prince-elector of Brunswick-Lüneburg
Emperor of the Holy Roman Empire
King of Prussia
Archduke of Austria
Answer
George III held the title of Duke and Prince-elector of Brunswick-Lüneburg in the Holy Roman Empire before becoming King of Hanover on October 12, 1814.
Unraveling the Regal Realm of George III: A Royal Quiz on the King of Great Britain and Ireland (1760-1820)