Kluczewo Duże was formerly part of the German Empire. In the German Empire, the place was called Schlüsselberg.
The place is now called Kluczewo and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Kluczewo | Russian Empire | Serpec | 1914 |
Kluczewo | Poland | Sierpc | 1919 |
Schlüsselberg | German Empire | Sichelberg | 1939 |
Kluczewo Duże | Poland | Żuromin | 1945 |
Kluczewo | Poland | Ciechanów | 1992 |