Kossewen, Ober was formerly part of the German Empire. In the German Empire, the place was called Oberrechenberg.
The place is now called Kosewo Górne and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Kossewen, Ober | German Empire | Sensburg | 1938 |
| Oberrechenberg | German Empire | Sensburg | 1939 |
| Kosewo Górne | Under Polish administration | Mrągowo | 1945 |
| Kosewo Górne | Poland | Olsztyn | 1992 |