Jaworowo Prochniatka was formerly part of the German Empire. In the German Empire, the place was called Morschdorf.
The place is now called Jaworowo II-Pruchniatka and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Jaworowo Prochniatka | Russian Empire | Serpec | 1914 |
| Jaworowo II-Próchniatka | Poland | Sierpc | 1919 |
| Morschdorf | German Empire | Sichelberg | 1939 |
| Próchniatka | Poland | Sierpc | 1945 |
| Jaworowo II-Pruchniatka | Poland | Płock | 1992 |