Zagaj Stary was formerly part of the German Empire. In the German Empire, the place was called NN.
The place is now called Zagaj Stary and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Zagaj Stary | Russian Empire | Lenčica | 1914 |
| Zagaj Stary | Poland | Łęczyca | 1921 |
| NN | German Empire | Lentschütz | 1939 |
| Zagaj Stary | Poland | Łęczyca | 1945 |
| Zagaj Stary | Poland | Płock | 1992 |