Ger, or Gur is a Hasidic

Hasidic Judaism

Hasidic Judaism or Hasidism, from the Hebrew —Ḥasidut in Sephardi, Chasidus in Ashkenazi, meaning "piety" , is a branch of Orthodox Judaism that promotes spirituality and joy through the popularisation and internalisation of Jewish mysticism as the fundamental aspects of the Jewish faith...

 dynasty originating from Ger, the Yiddish

Yiddish language

Yiddish is a High German language of Ashkenazi Jewish origin, spoken throughout the world. It developed as a fusion of German dialects with Hebrew, Aramaic, Slavic languages and traces of Romance languages...

 name of Góra Kalwaria

Góra Kalwaria

Góra Kalwaria is a town on the Vistula River in the Mazovian Voivodship, Poland, about 25 km southeast of Warsaw. It has a population of about 11,000 . The town has significance for both Catholic Christians and Hasidic Jews...

, a small town in Poland

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

.

Prior to the Holocaust

The Holocaust

The Holocaust , also known as the Shoah , was the genocide of approximately six million European Jews and millions of others during World War II, a programme of systematic state-sponsored murder by Nazi...

, Ger was probably the largest and most important Hasidic group in Poland. Today it is one of the largest Hasidic dynasties in the world, along with the Chabad-Lubavitch

Chabad

Chabad or Chabad-Lubavitch is a major branch of Hasidic Judaism.Chabad may also refer to:*Chabad-Strashelye, a defunct branch of the Chabad school of Hasidic Judaism*Chabad-Kapust or Kapust, a defunct branch of the Chabad school of Hasidic Judaism...

 and Satmar

Satmar (Hasidic dynasty)

Satmar is a Hasidic movement comprising mostly Hungarian and Romanian Hasidic Jewish Holocaust survivors and their descendants. It was founded and led by the late Hungarian-born Grand Rebbe Yoel Teitelbaum , who was the rabbi of Szatmárnémeti, Hungary...

 dynasties. It is now based in Jerusalem. The rebbe

Rebbe

Rebbe , which means master, teacher, or mentor, is a Yiddish word derived from the Hebrew word Rabbi. It often refers to the leader of a Hasidic Jewish movement...

s who lead the movement have the family name of Alter.