Silz, Bhf. was formerly part of the German Empire. In the German Empire, the place was called Silzhauland.
The place is now called Solec Nowy and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Silz, Hauland | German Empire | Bomst | before the Versailles Treaty |
| Solec Nowy | Poland | Wolsztyn | after the Versailles Treaty |
| Silz, Bhf. | German Empire | Wollstein | 1939 |
| Silzhauland | German Empire | Wollstein | 1939 |
| Solec Nowy | Poland | Wolsztyn | 1945 |
| Solec Nowy | Poland | Leszno | 1992 |