Piątnica was formerly part of the German Empire. In the German Empire, the place was called Pfaffendorf.
The place is now called Piątnica (Legnica-Piątnica) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Pfaffendorf | German Empire | Liegnitz | 1939 |
| Piątnica | Under Polish administration | Legnica | 1945 |
| Piątnica (Legnica-Piątnica) | Poland | Legnica | 1992 |