Grzęzno was formerly part of the German Empire. In the German Empire, the place was called Weitenhagen.
The place is now called Grzęzno and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Weitenhagen | German Empire | Naugard | 1939 |
| Grzęzno | Under Polish administration | Nowogard | 1945 |
| Grzęzno | Poland | Szczecin | 1992 |