Grzegórz was formerly part of the German Empire. In the German Empire, the place was called Falkenstein, Kr. Thorn.
The place is now called Grzegórz and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Falkenstein | German Empire | Kulm | before the Versailles Treaty |
| Grzegórz | Poland | Chełmno | after the Versailles Treaty |
| Falkenstein, Kr. Thorn | German Empire | Thorn | 1939 |
| Grzegórz | Poland | Toruń | 1945 |
| Grzegórz | Poland | Toruń | 1992 |