Kovarren was formerly part of the German Empire. In the German Empire, the place was called Kleinfriedeck.
The place is now called Zaozërnoe and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kowarren | German Empire | Angerapp | 1938 |
| Kleinfriedeck | German Empire | Angerapp | 1939 |
| Kovarren | Under Soviet administration | Kaliningrad | 1945 |
| Zaozërnoe | Russian Federation | Ozersk | 1992 |