a Jewish writer of note, was born at Gradiska in 1681; studied at Padua, and graduated as doctor of medicine. In 1709 he was ordained by Leon Briele rabbi of Mantua, and in 1721 he was called to the rabbinate at Ancona, where he died in 1740. He wrote, שות שמש צדקה, a collection of legal decisions (2 parts, Venice, 1742, 1743): עיוֹ הדעת , The Tree of Knowledge, a commentary on the ethical work of Jedaja Penini, entitled Bechinat Olam (Venice, 1704): — an approbation to Isaac Norzi's עטור בכורי קציר (ibid. 1715, 1717). Comp. Furst, Bibl. Jud. 2:391; Wolf, Biblioth. Hebr. 3:1160; Jocher, A llgem. Gelehrten Lex. s.v.