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