Franzthal was formerly part of the German Empire. In the German Empire, the place was called Franzthal.
The place is now called Głęboczek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Franzthal | German Empire | Friedeberg Nm. | 1939 |
| Głęboczek | Under Polish administration | Strzelce Krajeńskie | 1945 |
| Głęboczek | Poland | Gorzów | 1992 |