Płonna Pańska was formerly part of the German Empire. In the German Empire, the place was called Beckersdorf.
The place is now called Płonna Szlachecka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Plonna Panska | Russian Empire | Plock | 1914 |
| Plonna Szlachecka | Russian Empire | Plock | 1914 |
| Płonna Pańska | Poland | Płock | 1919 |
| Płonna Szlachecka | Poland | Płock | 1919 |
| Beckersdorf | German Empire | Schröttersburg | 1939 |
| Płonna Pańska | Poland | Płock | 1945 |
| Płonna Szlachecka | Poland | Płock | 1945 |
| Płonna Pańska | Poland | Płock | 1992 |
| Płonna Szlachecka | Poland | Płock | 1992 |