
1) Former borough of Berlin
Found on
https://www.crosswordclues.com/clue/charlottenburg

Charlottenburg (ʃaː ˈlɔt ᵊn ˌbuɐ̯k) is an affluent locality of Berlin within the borough of Charlottenburg-Wilmersdorf. Established as a town in 1705 and named after late Sophia Charlotte of Hanover, Queen consort of Prussia, it is best known for Charlottenburg Palace, the largest surviving royal palace in Berlin, and the adjacent museums...
Found on
http://en.wikipedia.org/wiki/Charlottenburg

area of Berlin, Ger., on the Spree River. Originally called Lietzenburg, it was renamed for Sophie Charlotte, wife of Frederick I, king of Prussia, ...
Found on
http://www.britannica.com/eb/a-z/c/59

a residential neighborhood in Berlin, Germany: 17th century palace.
Found on
https://www.infoplease.com/dictionary/charlottenburg
No exact match found.