Rubuta ci gaba don wannan sakin layi - Aryeh Tzvi Frumer (; kuma an rubuta shi "Fromer" ko "Frommer"; 18842 Mayu 1943) babban malamin Orthodox ne, rosh yeshiva, da posek (ikon halachic) a ƙarni na 20 a Poland. An san shi da Kozhiglover Rav bayan ɗan gajeren lokacinsa a matsayin Rav na Koziegłowy, ya yi aiki a matsayin rosh yeshiva na yeshiva a Sochaczew (Sochatchov) daga 1910 zuwa 1914 da rosh yeshiva na Yeshivas Chachmei Lublin, firaministan yeshiva na Poland, daga 1934 zuwa 1939. Sa'ad da Jamus ta Kwace Poland
, an tsare shi a cikin Ghetto na Warsaw. A lokacin bazara na shekara ta 1943 aka kai shi sansanin Majdanek, inda aka kashe shi. Littafinsa na responsa, "Eretz Tzvi" (The Fairest Land) ana ambatonsa sosai har zuwa yau.