Ollsche was formerly part of the German Empire. In the German Empire, the place was called Erlendorf.
The place is now called Olsza and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Ollsche | German Empire | Militsch | 1930 |
| Erlendorf | German Empire | Militsch | 1939 |
| Olsza | Under Polish administration | Milicz | 1945 |
| Olsza | Poland | Wrocław | 1992 |