In 1806, after his defeat at the Battle of Jena–Auerstedt, the Principality of Nassau-Orange-Fulda was absorbed into France and its vassal state Grand Duchy of Frankfurt.
In 1806, following the loss at the Battle of Jena–Auerstedt, the Principality of Nassau-Orange-Fulda was assimilated into France and its vassal state, the Grand Duchy of Frankfurt.