Grodzisk Mazowiecki is a town in central Poland with 29,363 inhabitants in 2011. It is 30 km. southwest of Warsaw.
Between 1975 and 1998 it was situated in the Warszawa Voivodeship but since 1999 it has been situated in the Masovian Voivodeship. It is the capital of Grodzisk Mazowiecki County.
12th century - medieval village Grodzisk was created
14th century - it was owned by Polish noble family Grodziski
1522 - Grodzisk Mazowiecki has received Municipal Rights from king Zygmunt (Sigismund) I Old
1655 - destroyed during Swedish Deluge then restored
1870 - its municipal rights were taken away
Between the 19th and 20th century Grodzisk was known as recreation center with hydropatic establishment founded by Michał Bojasiński
1915 - Grodzisk recaptured its municipal rights
The town had a Jewish community and it had been the center of the Hasidic Grodzhisk dynasty, (Grodzisk Mazowiecki being pronounced as "Grodzhisk" in Yiddish.) Grodzisk was the birthplace of Kalonymus Kalman Shapira (1889-1943), also known as the Rebbe of the Warsaw Ghetto.