Zatzkowen was formerly part of the German Empire. In the German Empire, the place was called Eisenack.
The place is now called Czaszkowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zatzkowen | German Empire | Sensburg | 1938 |
| Eisenack | German Empire | Sensburg | 1939 |
| Czaszkowo | Under Polish administration | Mrągowo | 1945 |
| Czaszkowo | Poland | Olsztyn | 1992 |