In 1807 it was regained by Poles and included with the short-lived Duchy of Warsaw, and in 1815 it fell to the Russian Partition of Poland.

At the end of the 19th century, the city had over 4,500 inhabitants,[2][3] with a sizeable Jewish minority, following the influx of Jews after the implementation of Russian discriminatory policies (see Pale of Settlement).

Over time, due to the new electromechanical plant, the city grew and gained importance among the surrounding towns.

During the war invasion of Poland, there were field hospitals in the town and in the Dobrzelin village, often bombarded by German air force.

In April 1940, the Germans arrested both Polish Christian and Jewish members of the intelligentsia, especially teachers, and sent them to concentration camps.

In March 1942, the remaining 3,200 Jews were rounded up, beaten and robbed, and taken to the Chełmno extermination camp where they were immediately murdered.

[9] The founder of the Żychlin Hasidic dynasty Rabbi Shmuel Abba was born to Reb Zelig on the 19th of Kislev in the city of Luvitch.

The first Rebbe of Zychlin, was Rabbi Shmuel Abba who had a small following of Hasidim and lived at his father-in-law's house.