Klein Oels was formerly part of the German Empire. In the German Empire, the place was called Klein Oels.
The place is now called Oleśniczka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Klein Oels | German Empire | Oels | 1939 |
| Oleśniczka | Under Polish administration | Oleśnica | 1945 |
| Oleśniczka | Poland | Wrocław | 1992 |