A bit of remedial Prussian history is in order here. Brandenburg came into its' own under the Great Elector, who finally booted out the Swedes at the Battle of Fehrbellin in 1685. In 1701 Elector Friedrich III was crowned "Koenig in Preussen", or King in Prussia, at Koenigsberg, thus establishing the Hohenzollerns as the dynastic ruling house of Prussia. Prussia was never, ever, an ally of Napoleon. My father is turning in his grave at this suggestion. The country was occupied after the disaster at Jena and Auerstaedt in 1806, and many Prussians, including one of my ancestors, were press-ganged into service in the Grande Armee for the 1812 campaign in Russia. It took the "Voelkerschlacht", or Battle of the Nations at Leipzig to finally turn the tide against the French.