Schlößchen-Iwanowen was formerly part of the German Empire. In the German Empire, the place was called Schlößchen.
The place is now called Zameczek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Schlößchen-Iwanowen | German Empire | Sensburg | 1929 |
| Schlößchen | German Empire | Sensburg | 1939 |
| Zameczek | Under Polish administration | Mrągowo | 1945 |
| Zameczek | Poland | Suwałki | 1992 |