Seelonken was formerly part of the German Empire. In the German Empire, the place was called Ulrichssee.
The place is now called Zielonka and belongs to Poland.
Historical place name | Country | Administration | Time |
---|---|---|---|
Zielonken | German Empire | Ortelsburg | 1900 |
Seelonken | German Empire | Ortelsburg | 1912 |
Ulrichssee | German Empire | Ortelsburg | 1939 |
Zielonka | Under Polish administration | Szczytno | 1945 |
Zielonka | Poland | Olsztyn | 1992 |