Pietrele was formerly part of the German Empire. In the German Empire, the place was called Treugenfließ.
The place is now called Pietrele and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pietrellen | German Empire | Angerburg | 1938 |
| Treugenfließ | German Empire | Angerburg | 1939 |
| Pietrele | Under Polish administration | Węgorzewo | 1945 |
| Pietrele | Poland | Suwałki | 1992 |