Gammel-Haderslev was formerly part of the German Empire. In the German Empire, the place was called Alt-Hadersleben.
The place is now called Haderslev * and belongs to Denmark.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alt-Hadersleben | German Empire | Hadersleben | before the Versailles Treaty |
| Gammel-Haderslev | Denmark | Haderslev | after the Versailles Treaty |
| Haderslev * | Denmark | Sønderjylland | 1993 |