Zielno was formerly part of the German Empire. In the German Empire, the place was called Grüneberg.
The place is now called Ogonki * and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Grüneberg | German Empire | Angerburg | 1939 |
| Zielno | Under Polish administration | Węgorzewo | 1945 |
| Ogonki * | Poland | Suwałki | 1992 |