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Olecko

Olecko was formerly part of the German Empire. In the German Empire, the place was called Treuburg.
The place is now called Olecko and belongs to Poland.

Historical place name Country Administration Time
Marggrabowa German Empire Treuburg 1928
Treuburg German Empire Treuburg 1939
Olecko Under Polish administration Olecko 1945
Olecko Poland Suwałki 1992