Noj Skardupënen was formerly part of the German Empire. In the German Empire, the place was called Grenzwald.
The place is now called Pugačevo and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neu Skardupönen | German Empire | Schloßberg (Ostpr.) | 1938 |
| Grenzwald | German Empire | Schloßberg (Ostpr.) | 1939 |
| Noj Skardupënen | Under Soviet administration | Kaliningrad | 1945 |
| Pugačevo | Russian Federation | Krasnoznamensk | 1992 |