Mupljaken was formerly part of the German Empire. In the German Empire, the place was called Moptau.
The place is now called Saltykovo and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Muplacken | German Empire | Wehlau | 1938 |
| Moptau | German Empire | Wehlau | 1939 |
| Mupljaken | Under Soviet administration | Kaliningrad | 1945 |
| Saltykovo | Russian Federation | Černjahovsk | 1992 |