Zaessingen was formerly part of the German Empire. In the German Empire, the place was called Zässingen.
The place is now called Zaessingue and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zässingen | German Empire | Mülhausen | before the Versailles Treaty |
| Zaessingen | France | Haut-Rhin | after the Versailles Treaty |
| Zässingen | German Empire | Mülhausen | 1940 |
| Zaessingue | France | Haut-Rhin | 1945 |
| Zaessingue | France | Haut-Rhin | 1993 |