Kingdom of Hanover

State · 1803–1865 CE · at its largest around 1864 CE

The successor of the Electorate of Hanover in northern Germany, ruled in personal union with Britain until 1837 and annexed by Prussia in 1866.

On its lands while it lasted

Düsseldorf (c. 1806 CE): Capital of Grand Duchy of Berg (1806–1813).
Lübeck (c. 1806 CE): Capital of Free City of Lübeck (1806–1870).
Oldenburg (c. 1806 CE): Capital of Duchy of Oldenburg (1806–1870).
Detmold (c. 1806 CE): Capital of Principality of Lippe (1806–1870).
Bad Arolsen (c. 1806 CE): Capital of Principality of Waldeck and Pyrmont (1806–1870).
Waldeck (c. 1806 CE): Capital of Principality of Waldeck and Pyrmont (1806–1870).
Grimms' Fairy Tales (1812 CE): Brothers Jacob and Wilhelm Grimm published the first volume of their collection of German folk tales in 1812 while living in Kassel.