The Kingdom of Saxony, lasting from 1806 to 1918, was an independent member of a number of historical confederacies in Napoleonic through post-Napoleonic Germany. The kingdom was formed from the Electorate of Saxony. From 1871, it was part of the German Empire. It became a free state in the era of Weimar Republic in 1918 after the end of World War I and the abdication of King Frederick Augustus II... Wikipedia