
1) Hill of Lower Saxony 2) Hill of the Harz 3) Mountain of the Harz
Found on
https://www.crosswordclues.com/clue/königsberg

Königsberg (until 1946 officially: Königsberg i. Pr.) is the former name of Kaliningrad (Калинингра́д) in the Russian Federation. It was the easternmost large city in Germany until it was captured by the Soviet Union near the end of World War II. The literal meaning of the city`s old name is `King`s Mountain`. In the local Low Ge...
Found on
http://en.wikipedia.org/wiki/Königsberg
[Goslar] The 435 m high Königsberg is a hill in the Harz mountains in central Germany, southwest of Goslar between the Grane Reservoir and the Steinberg. On its summit are the ruins of an old tuberculosis convalescent home, later a children`s home, the Königsberg Sanatorium. ...
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http://en.wikipedia.org/wiki/Königsberg_(Goslar)
[region] Regierungsbezirk Königsberg was a Regierungsbezirk, or government region, of the Prussian province of East Prussia from 1815 until 1945. The regional capital was Königsberg (since 1946, Kaliningrad). ==History== In 1808 during the Napoleonic Wars, East Prussia was divided into Regierungsbezirke Gumbinnen and Königsberg, comprisi...
Found on
http://en.wikipedia.org/wiki/Königsberg_(region)

Former name of Kaliningrad, a Baltic port in Russia
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.