Galician Hebraist; died at Lemberg 1856. He published "Ha-Ro'eh v-Mebaḳḳer Sifre Meḥabre Zemanenu" (Spectator and Critic of Contemporary Works), which contains long articles from his own pen, from that of his brother-in-law, A. M. Mohr, and others, against the works of S. L. Rapoport, S. D. Luzzatto, and S. J. Reggio (part , Lemberg, 1837; part , Ofen, 1839). Later he published, in conjunction with Mohr, a periodical entitled "Jerusalem," which appeared at irregular intervals (vol. , Zolkiev, 1844; , Lemberg, 1845; , Prague, 1845). He republished with notes the chronicles of Abraham Trebitsch, "Ḳorot ha-'Ittim," which cover the period from 1741 to 1801, and "Ḳorot Nosafot," a continuation until the year 1850 (Lemberg, 1851). His biography of his friend, R. Ẓebi Hirsch Chajes of Zolkiev, appeared in "Ha-Maggid," , Nos. 8-11.