Russian rabbi; born (in Grodno ?) 1779; died at Wilna July 31, 1855. He became one of the "more ?ede?" ("dayyanim") of Wilna in 1819, and held that position till his death. He made a special study of the religious usages of Elijah Wilna not practised by others, and incorporated the results in his work "Ma'aseh Rab" (Zolkiev, 1808), of which a second edition, with notes and additions by his son Mordecai, was published at Wilna and Grodno in 1832. Another of his sons, Elijah Perez, who was also a moreh ?ede? in Wilna, republished that work with additions and an appendix entitled "Min?at 'Ereb" (Wilna, 1832). Later editions (Warsaw, 1858, and Wilna, 1889) contain various additions and extracts from other books on subjects similar to those treated in the body of the work.