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