Unification of Germany
With Brandenburg, Crossen became part of the Kingdom of Prussia in 1701. In reforms after the Napoleonic Wars, the town became part of the Province of Brandenburg in 1815 and was the seat of Landkreis Crossen as part of Regierungsbezirk Frankfurt . As a result of the Unification of Germany, it became part of the German Empire in 1871. In May 1886 the town was devastated by a whirlwind.