NN was formerly part of the German Empire. In the German Empire, the place was called Sydowsfelde.
The place is now called Jezierzec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sydowsfelde | German Empire | Lauenburg i.Pom. | 1939 |
| NN | Under Polish administration | Lębork | 1945 |
| Jezierzec | Poland | Słupsk | 1992 |