Magny (Lothr.) was formerly part of the German Empire. In the German Empire, the place was called Manningen (Metz-Manningen).
The place is now called Magny (Metz-Magny) and belongs to France.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Magny (Lothr.) | German Empire | Metz | before the Versailles Treaty |
| Manningen | German Empire | Metz | before the Versailles Treaty |
| Magny-sur-Seille | France | Moselle | after the Versailles Treaty |
| Manningen | German Empire | Metz | 1940 |
| Manningen (Metz-Manningen) | German Empire | Metz (St.Kr.) | 1940 |
| Magny | France | Moselle | 1945 |
| Magny (Metz-Magny) | France | Moselle | 1993 |