German scholar; flourished in the seventeenth and eighteenth centuries. A native of Fulda, he was generally called "Jacob of Fulda"; but he was banished from that town and settled at Schwerin. He wrote: (1) "Tiḳḳun Sheloshah Mishmarot" (Frankfort-on-the-Oder, 1691), prayers to be recited in the three divisions of the night, for which the Zohar was his main source. This work was translated into Judæo-German by the author's wife, Laza, who added a preface (Frankfort-on-the-Main, 1692). Benjacob ("Oẓar ha-Sefarim," p. 669), following Wolf ("Bibl. Hebr." , Nos. 1338 et seq.), attributes the authorship to Laza. (2) "Shoshannat Ya'aḳob" (Amsterdam, 1706; Leghorn, 1792), a treatise on chiromancy, physiognomy, and astrology.