Osa was formerly part of the German Empire. In the German Empire, the place was called Schwanhof.
The place is now called Osa and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Ossa | German Empire | Sensburg | 1930 |
Schwanhof | German Empire | Sensburg | 1939 |
NN | Under Polish administration | Mrągowo | 1945 |
Osa | Poland | Suwałki | 1992 |