Nassengrub was formerly part of the German Empire. In the German Empire, the place was called Nassengrub.
The place is now called Mokřiny (Aš-Mokřiny) and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Nassengrub | Austro-Hungary | Asch | before the Treaty of Saint-Germain |
| Nassengrub | Czechoslovakia | Aš | after the Treaty of Saint-Germain |
| Nassengrub | German Empire | Asch | 1938 |
| Mokřiny | Czechoslovakia | Aš | 1945 |
| Mokřiny (Aš-Mokřiny) | Czechoslovakia | Cheb | 1992 |
| Mokřiny (Aš-Mokřiny) | Czech Republic | Cheb | 1993 |