Kleczew was formerly part of the German Empire. In the German Empire, the place was called Lehmstädt.
The place is now called Kleczew and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kleczew | Russian Empire | Slupcy | 1914 |
| Kleczew | Poland | Konin | 1921 |
| Kleczew | German Empire | Konin | 1939 |
| Lehmstädt | German Empire | Konin | 1939 |
| Kleczew | Poland | Konin | 1945 |
| Kleczew | Poland | Konin | 1992 |