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ISAAC BEN ḤAYYIM BEN ABRAHAM HA-KOHEN – Italian exegete; lived successively at Bologna, Jesi, Recanati, and Rome, in the fifteenth and sixteenth centuries. He was the author of the following works: (1) a commentary on the Song of Songs, on Lamentations, and on the...
ISAAC BEN ḤAYYIM OF VOLOZHIN – Russian Talmudist; born at Volozhin, government of Wilna; died at Ivenitz, government of Minsk, June 16, 1849. Isaac was a distinguished Talmudist, owing to which fact he succeeded his father as headof the yeshibah of Volozhin....
ISAAC BEN ISAAC – French tosafist of the second half of the thirteenth century; mentioned in Tos. Naz. 16b; identical, according to Gross and Zunz, with Isaac of Chinon, whose glosses are found in Shiṭṭah Meḳubbeẓet to Naz. 63a. He is also...
ISAAC ISRAELI – See Israeli, Isaac ben Solomon.
ISAAC (ISACHOK), JACOB – Court physician to King Sigismund I. of Poland; son of Abraham of Jerusalem; died at Kazimierz, a suburb of Cracow, about 1510. He was recommended in 1504 to King Alexander Jagellons by Archbishop Andreas of Gnesen, whose court...
ISAAC (EISAK) BEN JACOB ḤABER – Rabbi at Tikotzyn and Suwalki, Poland; lived in the first half of the nineteenth century. He wrote: "Bet Yiẓḥaḳ," a ritualistic work, the first part of which bore the title "Sha'ar ha-Ḳabua'," the second, "Sha'ar ha-Sefeḳut"...
ISAAC BEN JACOB HA-LABAN – Tosafist and liturgical poet; flourished at Prague in the twelfth century; the brother of the traveler Pethahiah of Regensburg. He was among the earliest of the tosafists ("ba'ale tosafot yeshanim"), a contemporary of R. Eleazar...
ISAAC BEN JACOB THE LEVITE – Rabbi and cantor at Venice; born in 1621. He was the son of a cabalist and a grandson of Judah de Modena, whose "Bet Yehudah" (on haggadic Talmudical passages) Isaac set up in type when only fourteen years old. Isaac had many...
ISAAC IBN JASOS IBN SAḲṬAR – Spanish grammarian; born 982; died at Toledo about 1057-58. He is identified by Steinschneider with the physician Isḥaḳ ibn Ḳasṭar or, as Moses ibn Ezra calls him, Isḥaḳ ibn Saḳṭar ("Z. D. M. G." viii. 551, ix. 838). According...
ISAAC, JOHANN LEVITA – German professor of Hebrew; born 1515; died at Cologne 1577. At first a rabbi at Wetzlar, he was baptized as a Protestant in 1546, but embraced the Roman Catholic faith when called to Cologne as professor of Hebrew, in which...
ISAAC BEN JOSEPH OF CORBEIL – French ritualist; flourished in the second half of the thirteenth century. He was the son-in-law of R. Jehiel ben Joseph of Paris, whose school he attended, and the pupil of the "Great Men of Evreux," notably of Samuel, whom he...
ISAAC (EISAK) BEN JOSHUA BEN ABRAHAM OF PRAGUE – Physician and parnas of Prague in the sixteenth century. He was the author of "'Olat Yiẓḥaḳ" a collection of ritual laws arranged after the Arba' Ṭurim of Jacob ben Asher. They are in the form of 843 problems or riddles, in one...
ISAAC JOSHUA BEN IMMANUEL DE LATTES – Italian Talmudist and publisher: born at Rome at the end of the fifteenth century: died at Ferrara about 1570. He was the grandson of thewell-known physician and astronomer Immanuel Boneto. Isaac occupied, about 1530, the...
ISAAC BEN JUDAH – Talmudist of the twelfth century; teacher of Solomon ben Isaac (Rashi). He was a native of Lorraine ("Ha-Pardes," 35a), but settled early in life in Germany, where he studied under Eleazar ha-Gadol. Isaac occupied successively...
ISAAC BEN JUDAH HA-LEVI – French exegete and tosafist; lived at Sens, probably, in the second half of the thirteenth century. He was the pupil of Ḥayyim of Falaise, whom Gross identifies with Ḥayyim Paltiel. Isaac compiled, under the title "Pa'aneaḥ...
ISAAC BEN JUDAH LÖB – Rabbi at Offenbach in the first half of the eighteenth century. He wrote "Be'er Yiẓḥaḳ," a commentary on the Hafṭarot, with the text (1729); "Me'irat 'Enayim," on the 613 Biblical precepts according to Maimonides (Fürth, 1730)....
ISAAC BEN JUDAH BEN NATHANAEL OF BEAUCAIRE – Liturgic poet of the early part of the thirteenth century. Zunz credits him with thirty-eight synagogal hymns, most of them to be found in the rituals of Carpentras, Avignon, and Tripoli. They are dated between 1205 and 1220....
ISAAC HA-KOHEN OF MANOSQUE – French Talmudist of the first half of the fourteenth century; rabbi at Manosque, in the department of Basses-Alpes. He is praised as a great Talmudist by his contemporaries, although he does not seem to have written anything. He...
ISAAC HA-KOHEN OF NARBONNE – French Talmudist; lived in the twelfth and thirteenth centuries; a disciple of Abraham ben David of Posquières. He was the author of a commentary, no longer extant, on various treatises of the Jerusalem Talmud. This commentary...
ISAAC HA-KOHEN OF OSTROG – Russian rabbi; lived in the sixteenth and seventeenth centuries. He was the author of a work entitled "Mattenot 'Ani," or "Ḳiẓẓur Mizraḥi," a compendium of Elijah Mizraḥi's commentary on Rashi, with notes (Prague,...
ISAAC DE LEON – One of the last rabbis of Castile; lived at Toledo. He was a native of Leon, and a pupil of Isaac Campanton, and, like Moses de Leon, a cabalist and a believer in miracles. Joseph Caro and others honored him with the title of...
ISAAC LEON BEN ELIEZER IBN ẒUR SEFARDI – Rabbi at Ancona in the first half of the sixteenth century. He belonged to a Spanish family which settled in Italy after the expulsion of the Jews from Spain. Isaac was the author of "Megillat Ester," in which he defends the...
ISAAC BEN LEVI OF PROVENCE – French liturgical poet; flourished in the twelfth century. Among the piyyuṭim for New-Year's Day contained in the Maḥzor of Provence are some which indicate Isaac b. Levi as their author. Zunz ("Z. G." p. 466) supposes that...
ISAAC BEN LEVI BEN SAUL OF LUCENA – Spanish grammarian and liturgical poet; flourished in the first half of the eleventh century; a contemporary of Isaac Gikatilla and Isaac ibn Ḥalfon. Isaac is quoted under the name of "Isaac b. Saul" by Ibn Janaḥ in "Ha-Riḳmah"...
ISAAC HA-LEVI OF WORMS – See Isaac b. Eleazar ha-Levi.

ISAAC BEN ḤAYYIM BEN ABRAHAM HA-KOHEN – Italian exegete; lived successively at Bologna, Jesi, Recanati, and Rome, in the fifteenth and sixteenth centuries. He was the author of the following works: (1) a commentary on the Song of Songs, on Lamentations, and on the...

ISAAC BEN ḤAYYIM OF VOLOZHIN – Russian Talmudist; born at Volozhin, government of Wilna; died at Ivenitz, government of Minsk, June 16, 1849. Isaac was a distinguished Talmudist, owing to which fact he succeeded his father as headof the yeshibah of Volozhin....

ISAAC BEN ISAAC – French tosafist of the second half of the thirteenth century; mentioned in Tos. Naz. 16b; identical, according to Gross and Zunz, with Isaac of Chinon, whose glosses are found in Shiṭṭah Meḳubbeẓet to Naz. 63a. He is also...

ISAAC ISRAELI – See Israeli, Isaac ben Solomon.

ISAAC (ISACHOK), JACOB – Court physician to King Sigismund I. of Poland; son of Abraham of Jerusalem; died at Kazimierz, a suburb of Cracow, about 1510. He was recommended in 1504 to King Alexander Jagellons by Archbishop Andreas of Gnesen, whose court...

ISAAC (EISAK) BEN JACOB ḤABER – Rabbi at Tikotzyn and Suwalki, Poland; lived in the first half of the nineteenth century. He wrote: "Bet Yiẓḥaḳ," a ritualistic work, the first part of which bore the title "Sha'ar ha-Ḳabua'," the second, "Sha'ar ha-Sefeḳut"...

ISAAC BEN JACOB HA-LABAN – Tosafist and liturgical poet; flourished at Prague in the twelfth century; the brother of the traveler Pethahiah of Regensburg. He was among the earliest of the tosafists ("ba'ale tosafot yeshanim"), a contemporary of R. Eleazar...

ISAAC BEN JACOB THE LEVITE – Rabbi and cantor at Venice; born in 1621. He was the son of a cabalist and a grandson of Judah de Modena, whose "Bet Yehudah" (on haggadic Talmudical passages) Isaac set up in type when only fourteen years old. Isaac had many...

ISAAC IBN JASOS IBN SAḲṬAR – Spanish grammarian; born 982; died at Toledo about 1057-58. He is identified by Steinschneider with the physician Isḥaḳ ibn Ḳasṭar or, as Moses ibn Ezra calls him, Isḥaḳ ibn Saḳṭar ("Z. D. M. G." viii. 551, ix. 838). According...

ISAAC, JOHANN LEVITA – German professor of Hebrew; born 1515; died at Cologne 1577. At first a rabbi at Wetzlar, he was baptized as a Protestant in 1546, but embraced the Roman Catholic faith when called to Cologne as professor of Hebrew, in which...

ISAAC BEN JOSEPH OF CORBEIL – French ritualist; flourished in the second half of the thirteenth century. He was the son-in-law of R. Jehiel ben Joseph of Paris, whose school he attended, and the pupil of the "Great Men of Evreux," notably of Samuel, whom he...

ISAAC (EISAK) BEN JOSHUA BEN ABRAHAM OF PRAGUE – Physician and parnas of Prague in the sixteenth century. He was the author of "'Olat Yiẓḥaḳ" a collection of ritual laws arranged after the Arba' Ṭurim of Jacob ben Asher. They are in the form of 843 problems or riddles, in one...

ISAAC JOSHUA BEN IMMANUEL DE LATTES – Italian Talmudist and publisher: born at Rome at the end of the fifteenth century: died at Ferrara about 1570. He was the grandson of thewell-known physician and astronomer Immanuel Boneto. Isaac occupied, about 1530, the...

ISAAC BEN JUDAH – Talmudist of the twelfth century; teacher of Solomon ben Isaac (Rashi). He was a native of Lorraine ("Ha-Pardes," 35a), but settled early in life in Germany, where he studied under Eleazar ha-Gadol. Isaac occupied successively...

ISAAC BEN JUDAH HA-LEVI – French exegete and tosafist; lived at Sens, probably, in the second half of the thirteenth century. He was the pupil of Ḥayyim of Falaise, whom Gross identifies with Ḥayyim Paltiel. Isaac compiled, under the title "Pa'aneaḥ...

ISAAC BEN JUDAH LÖB – Rabbi at Offenbach in the first half of the eighteenth century. He wrote "Be'er Yiẓḥaḳ," a commentary on the Hafṭarot, with the text (1729); "Me'irat 'Enayim," on the 613 Biblical precepts according to Maimonides (Fürth, 1730)....

ISAAC BEN JUDAH BEN NATHANAEL OF BEAUCAIRE – Liturgic poet of the early part of the thirteenth century. Zunz credits him with thirty-eight synagogal hymns, most of them to be found in the rituals of Carpentras, Avignon, and Tripoli. They are dated between 1205 and 1220....

ISAAC HA-KOHEN OF MANOSQUE – French Talmudist of the first half of the fourteenth century; rabbi at Manosque, in the department of Basses-Alpes. He is praised as a great Talmudist by his contemporaries, although he does not seem to have written anything. He...

ISAAC HA-KOHEN OF NARBONNE – French Talmudist; lived in the twelfth and thirteenth centuries; a disciple of Abraham ben David of Posquières. He was the author of a commentary, no longer extant, on various treatises of the Jerusalem Talmud. This commentary...

ISAAC HA-KOHEN OF OSTROG – Russian rabbi; lived in the sixteenth and seventeenth centuries. He was the author of a work entitled "Mattenot 'Ani," or "Ḳiẓẓur Mizraḥi," a compendium of Elijah Mizraḥi's commentary on Rashi, with notes (Prague,...

ISAAC DE LEON – One of the last rabbis of Castile; lived at Toledo. He was a native of Leon, and a pupil of Isaac Campanton, and, like Moses de Leon, a cabalist and a believer in miracles. Joseph Caro and others honored him with the title of...

ISAAC LEON BEN ELIEZER IBN ẒUR SEFARDI – Rabbi at Ancona in the first half of the sixteenth century. He belonged to a Spanish family which settled in Italy after the expulsion of the Jews from Spain. Isaac was the author of "Megillat Ester," in which he defends the...

ISAAC BEN LEVI OF PROVENCE – French liturgical poet; flourished in the twelfth century. Among the piyyuṭim for New-Year's Day contained in the Maḥzor of Provence are some which indicate Isaac b. Levi as their author. Zunz ("Z. G." p. 466) supposes that...

ISAAC BEN LEVI BEN SAUL OF LUCENA – Spanish grammarian and liturgical poet; flourished in the first half of the eleventh century; a contemporary of Isaac Gikatilla and Isaac ibn Ḥalfon. Isaac is quoted under the name of "Isaac b. Saul" by Ibn Janaḥ in "Ha-Riḳmah"...

ISAAC HA-LEVI OF WORMS – See Isaac b. Eleazar ha-Levi.