Kozlow was formerly part of the German Empire. In the German Empire, the place was called Kozlov.
The place is now called Kozlov and belongs to Czechoslovakia.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kozlow | Austro-Hungary | Ledeč | before the Treaty of Saint-Germain |
| Kozlov | Austro-Hungary | Ledeč | before the Treaty of Saint-Germain |
| Kozlov | Czechoslovakia | Ledeč nad Sázavou | after the Treaty of Saint-Germain |
| Koslow | German Empire | Ledetsch an der Sasau | 1939 |
| Kozlov | German Empire | Ledetsch an der Sasau | 1939 |
| Kozlov | Czechoslovakia | Ledeč nad Sázavou | 1945 |
| Kozlov | Czechoslovakia | Východní Čechy | 1992 |