sentences:  During the Napoleonic Wars, it became part of the Duchy of Warsaw in 1807 and later, of Congress Poland ruled by the namiestniks of the Russian Empire.Located at the borders with the German Empire and Austria-Hungary, Sosnowiec became famous for the Three Emperors' Corner tripoint, which was located within current limits of the city.With effect from 10 June 1902, by the order of Emperor Nicholas II of Russia, Sosnowiec was legally named a city with the area of and with 60,000 inhabitants.