Hanover – the fifth kingdom (1813-1866: Hannover) The Electorate of Hanover (Hannover) was a German state originating from the fifteenth century Principality of Calenberg-Göttingen. In 1714, George Louis of Hanover became George I, who ruled both Great Britain and Hanover. Four successive monarchs ruled both Great Britain and Hanover. After the fall of Napoleon, it … Continue reading Hanover