Unter-Pořič was formerly part of the German Empire. In the German Empire, the place was called Dolní Poříčí.
The place is now called Dolní Poříčí and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Unter-Pořič | Austro-Hungary | Strakonitz | before the Treaty of Saint-Germain |
| Dolní Poříčí | Austro-Hungary | Strakonitz | before the Treaty of Saint-Germain |
| Dolní Poříčí | Czechoslovakia | Strakonice | after the Treaty of Saint-Germain |
| Unter-Porschitsch | German Empire | Strakonitz | 1939 |
| Dolní Poříčí | German Empire | Strakonitz | 1939 |
| Dolní Poříčí | Czechoslovakia | Horažďovice | 1945 |
| Dolní Poříčí | Czechoslovakia | Strakonice | 1992 |
| Dolní Poříčí | Czech Republic | Strakonice | 1993 |