Aryeh Tzvi Frumer

Who is Aryeh Tzvi Frumer?

Aryeh Tzvi Frumer was a leading Orthodox rabbi, rosh yeshiva, and posek in 20th-century Poland. Known as the Kozhiglover Rav after his short term as Rav of Koziegłowy, he served as rosh yeshiva of the yeshiva in Sochaczew from 1910 to 1914 and rosh yeshiva of Yeshivas Chachmei Lublin, the premier yeshiva of Poland, from 1934 to 1939. During the German Occupation of Poland, he was incarcerated in the Warsaw Ghetto. In spring 1943 he was deported to the Majdanek concentration camp, where he was murdered. His book of responsa, Eretz Tzvi is widely quoted to this day.