Alter Yitzchak Meir (1789–1866), Talmudist and Kabbalist, one of the Hasidic leaders in Poland. From 1859, the tzaddik in Góra Kalwaria, the founder of the Hasidic dynasty; from among the Hasidic leaders in the Polish territories, he gained the greatest authority and notability. Author of numerous halakhic and ritual works, including comments to the Talmud (vol. 1–5 1860–1870).
The content of this entry has been prepared on the basis of the source materials of the Polish Scientific Publishers PWN.