For a short period Lauenburg was still an autonomous entity , but in 1876 it was incorporated as a district into the Prussian province of Schleswig - Holstein .
In 1864 it fell to Prussia after the Second Schleswig War .
For a short period Lauenburg was still an autonomous entity , but in 1876 it was incorporated as a district into the Prussia province of Schleswig - Holstein .
In 1864 it fell to Prussia after the Second Schleswig War .