Pietraschen was formerly part of the German Empire. In the German Empire, the place was called Reuental (Ostpr.).
The place is now called Pietrasze and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pietraschen | German Empire | Goldap | 1938 |
| Reuental (Ostpr.) | German Empire | Goldap | 1939 |
| Pietrasze | Under Polish administration | Gołdap | 1945 |
| Pietrasze | Poland | Suwałki | 1992 |