#Prussia
- Arnim — The name of an old and influential Prussian noble family, notable in German history for its prominent figures in literature, diplomacy, and military. Famous members include the Romantic writer Achim von Arnim and his wife, Bettina von Arnim.
- Auerstädt — The name of a village in Thuringia, Germany, famous in world history due to the Battle of Auerstädt (October 14, 1806). In this armed conflict, French Marshal Louis-Nicolas Davout defeated the main Prussian army led by the Duke of Brunswick, collapsing the Kingdom of Prussia.