Mierucin was formerly part of the German Empire. In the German Empire, the place was called Falkental, Kr. Wirsitz.
The place is now called Mierucin and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Falkenthal | German Empire | Wirsitz | before the Versailles Treaty |
| Mierucin | Poland | Wyrzysk | after the Versailles Treaty |
| Falkental, Kr. Wirsitz | German Empire | Wirsitz | 1939 |
| Mierucin | Poland | Sępólno Krajeńskie | 1945 |
| Mierucin | Poland | Bydgoszcz | 1992 |