R. Issachar Baer ben Samson Bloch (1730–1798), Austrian rabbi. Bloch was born in Hamburg and studied under Jonathan R. Eybeschuetz and R. Ezekiel Landau . After serving as rabbi in several communities he was rabbi in Boskovice (1793–96), and later in Mattersdorf where he died. In addition to Binat Yissakhar R. Bloch also wrote glosses on the Mishnah (published in the Lemberg edition, 1869) under the title Benei Yissakhar. He carried on a halakhic correspondence with some of the renowned contemporary scholars, to which reference is made in Ezekiel Landau's Noda bi-Yhudah (1928, pp. 87–89; cf. also Eleazar b. Aryeh Loeb, Shemen Roke'aḥ, (1902), 181–2; and R. Moses Sofer, Ḥatam Sofer, 7 (1912), nos. 17, 18, 21). Bloch, who was childless, adopted Jacob Patraselka, ancestor of the rabbinical family of Duschinsky and the first rabbi in Nádasd (Hungary), who also carried on a correspondence with Moses Sofer (Ḥatam Sofer, OḤ, nos. 104, 106, 139; YD, nos. 243, 305; ḤM, no. 206).

הסכמות: ר' יחזקאל סג"ל לנדא, ר' מאיר ברבי, ר' גרשון חיות ור' ברוך ב"ר וואלף, שהועתקו מן ההוצאה הראשונה, ומכתבים [הסכמות], מאת ר' שאול בראך מנייטרא, קאשוי, ח"י למב"י [ג אייר] תרפ"ח, ור' שמעון ב"ר ד"צ [דוב צבי עהרענפעלד], מיהאלעוויטץ, ב דראש-חודש תמוז תרפ"ח.