ISAAC BEN ELIAKIM OF POSEN – German moralist and author; lived in the sixteenth and seventeenth centuries. He was the author of "Leb Ṭob" (Prague, 1620), an ethical work in Judæo-German in twenty chapters. Its popularity may be judged from the fact that it...
ISAAC BEN ELIEZER – Ethical writer at Worms; flourished from 1460 to 1480. He attended the lectures of Moses ben Eliezer ha-Darshan (Zunz, "Z. G." p. 105), whom he praises in high terms. Isaac wrote in German an ethical and ascetic treatise under...
ISAAC BEN ELIEZER HA-LEVI – Spanish grammarian of the fourteenth century. He was the author of "Sefer ha-Riḳmah," a grammatical treatise still extant in manuscript (Paris, Bibliothèque Nationale, Hebr. MSS., Ancien Fonds, No. 510). As stated in the...
ISAAC BEN ELIJAH SHENI (SHANI) – Turkish rabbi; lived at Constantinople in the first half of the sixteenth century. The name "Sheni" is followed by the letters , which Steinschneider ("Cat. Bodl." col. 1155) suggests should be read as , the initials of the...
ISAAC OF EVREUX – French rabbinical scholar and Biblical commentator; flourished in the thirteenth century. His authority was invoked by Mordecai (Giṭ. iv., No. 384; Ber. vi.), and by R. Perez in his glosses on the "Semaḳ" (No. 293). He is...
ISAAC IBN GABBAI – See Gabbai.
ISAAC IBN ḤALFON, ABU IBRAHIM – Spanish poet of the eleventh century. According to Moses ibn Ezra's treatise on poetry (Neubauer, "Cat. Bodl. Hebr. MSS." No. 1974, fol. 316), his father had emigrated from Africa to Andalusia. Isaac was acquainted with Jacob...