Crown Prince Friedrich Wilhelm was Kaiser Wilhelm I’s son, and Kaiser Wilhelm II’s father. Friedrich Wilhelm became Kaiser Friedrich III. He sat on Germany’s throne for 99 days and was known in Germany as the “99-Day-Kaiser.” Friedrich Wilhelm was a very able military commander during the 1864 Danish-Prussian War, 1866 Austro-Prussian War, and the 1870-1871 Franco-Prussian War. The color postcard depicts him mounted, riding among his troops after the Battle of Worth. It took place on 6 August 1870. If you look to the right, you will see one German soldier holding a French regiment’s colors. During these wars, as well as the earlier Napoleonic Wars, the capture of regimental colors was a big event.