Digby,

As alwasy you're right...I see from Wikipedia:

"At the turn of the nineteenth century, the King of Prussia was defeated by Napoleon I and was forced to give up Neuchâtel in order to keep Hanover. Napoleon's marshall, Berthier, became Prince of Neuchâtel, building roads and restoring infrastructure, but never actually setting foot in his domain. After the fall of Napoleon, Frederick William III of Prussia reasserted his rights by proposing that Neuchâtel be linked with the other Swiss cantons (the better to exert influence over the lot of them). On September 12, 1814, Neuchâtel became the 21st canton, but also remained a Prussian principality. It took a bloodless revolution in the decades following for Neuchâtel to shake off its princely past and declare itself, on March 1, 1848, a republic within the Swiss Confederation. To this day, the Republic and Canton of Neuchâtel is the only one of the 26 to proudly fly a tricolour – green, white and red, with a minute Swiss cross hanging in the top corner."

v/r Greg