During the Great Northern War of 1700–21, the city was significantly damaged by Swedish troops. It was rebuilt in the 1720s by Michał "Rybeńko" Radziwiłł. In the aftermath of the war, in 1740s and 1750s he founded a "Pas slucki" factory which was later moved to Sluck. He introduced a military school, several textile factories and restored the Corpus Christi Church and opened a print works. Michał's wife, Franciszka Urszula Radziwiłłowa, founded the "Nieśwież Radziwiłł Theatre", including a choir and a ballet school.