ISHMAEL B. ABRAHAM HA-KOHEN:
Talmudic scholar and author; chief rabbi of Modena; born 5484 (=1724); died 5571 (=1811). He was recognized as a profound dialectician, and many casuistic questions were submitted to him. His responsa and novellæ were collected under the title "Zera' Emet," two volumes of which appeared in his lifetime (vol. i., Leghorn, 1786; vol. ii., ib. 1796), comprising responsa in Oraḥ Ḥayyim and Yorch De'ah.
- Fuenn, Keneset Yisrael;
- Walden, Shem ha-Gedolim he-Ḥadash, 3d ed., p. 36a, Warsaw, 1882.