The Grand Duchy of Frankfurt was a German satellite state of Napoleonic creation. It came into existence in 1810 through the combination of the former territories of the Archbishops of Mainz along with the city of Frankfurt itself. The former Arch-chancellor, Karl Theodor von Dalberg, became Grand Duke, although the territory was actually ruled by French commissioners. By the constitution of the Grand Duchy, upon the Arch-chancellor's death, the Grand Duchy would be inherited by Napoleon's stepson, Eugene de Beauharnais. The Arch-chancellor abdicated in favour of Eugene on 26 October 1813, following Napoleon's defeat at the Battle of Leipzig. The Grand Duchy ceased to exist after December 1813, when the city was occupied by allied troops. While Frankfurt itself once again became a free city, most of the territory of the Grand Duchy was ultimately annexed by Bavaria.

Hesse | Frankfurt | States of the Confederation of the Rhine | Client states of the Great French War

Großherzogtum Frankfurt | Groothertogdom Frankfurt | Storhertugdømmet Frankfurt