Aleksander Hasidim (Yiddish, Aleksander Hasidim] - In the years 1866 to 1870, the town of Aleksandrow Lodzki was the center for Chasidim from Gora Kalwaria.
Henoch Henich Kohen Levin was rabbi there (1798-1870), some of whose students became prominent tzaddikim, including Yaakov Yitzhak Ha-Levi Horovitz of Lublin and Menachem Mendel Morgenstern of Kock. After the death of his friend and teacher, Yitzhak Meir Rothenberg Alter, Henoch Henich Cohen Levin became leader of the Chasidim from Gora Kalwaria. He introduced many innovations, such as accepting requests made by women. The founder of what could actually be called the Aleksandrow dynasty was the son of a tzaddik from Grojec, Yechiel Danziger (?-1894), the pupil of the tzaddik Israel Yitzhak Kalish of Warka. -His son, Yerachmiel Israel Yitzhak Danziger (1853-1910), however, was even more famous, and had a large group of followers. He was the author of Yismach Israel (Hebrew, Be Joyful, Israel, 1911), which he wrote together with his brother, Shmuel Tsvi (d. 1923), who later succeeded him. The teachings of the tzaddikim who followed stressed ethics, mysticism and ecstatic religious forms, putting less emphasis on studying the Talmud. The followers of the tzaddikim from Aleksandrow were primarily merchants and artisans, especially from Lodz, where there were approximately 35 houses of prayer. After Shmuel Tsvi's death, the dynasty was continued by his brother, Betsalel Yair (1856-1934) and Shmuel Tsvi's son - Yitzhak Menachem Mendel Danziger (1880-1943), whose accomplishments included the expansion of religious schools in Lodz and in Aleksandrow. Unlike many Chasidic leaders of that period, he was not interested in politics. During the Second World War, he was in the Warsaw ghetto. Refusing to leave for Palestine, he died along with his family in Treblinka. The Chasidic community from Aleksandrow exists in Israel to this day.