Kołaczkowo, Dwór was formerly part of the German Empire. In the German Empire, the place was called Rensdorf (Kr. Altburgund).
The place is now called Kołaczkowo and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rensdorf | German Empire | Schubin | before the Versailles Treaty |
| Kołaczkowo, Dwór | Poland | Szubin | after the Versailles Treaty |
| Rensdorf | German Empire | Altburgund | 1939 |
| Rensdorf (Kr. Altburgund) | German Empire | Altburgund | 1939 |
| Kołaczkowo | Poland | Szubin | 1945 |
| Kołaczkowo | Poland | Bydgoszcz | 1992 |