Alsleben norden der Au was formerly part of the German Empire. In the German Empire, the place was called Alsleben norden der Au.
The place is now called Alslev and belongs to Denmark.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Alsleben norden der Au | German Empire | Tondern | before the Versailles Treaty |
| Alslev * | Denmark | Tønder | after the Versailles Treaty |
| Alslev | Denmark | Sønderjylland | 1993 |