Książnik was formerly part of the German Empire. In the German Empire, the place was called Herzogswalde.
The place is now called Książnik and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Herzogswalde | German Empire | Heiligenbeil | 1939 |
| NN | Under Soviet administration | Kaliningrad | 1945 |
| Książnik | Poland | Elbląg | 1992 |