JewishEncyclopedia.com

ISAAC BEN MORDECAI HA-LEVI – Rabbi of Lemberg; died in Cracow 1799. His father was chief of the yeshibah at Lemberg, and Isaac himself officiated as rabbi first in Leshnow, Galicia, afterward in Chelm, Poland. In 1776 he left the last-named place for the...
ISAAC BEN MOSES ELI (Ha-Sefardi) – Spanish mathematician of the fifteenth century; born at Oriola, Aragon. According to Steinschneider, he may have been one of the Spanish exiles of 1492; he probably went to Constantinople. His brother was possibly the Judah ben...
ISAAC BEN MOSES OF VIENNA – German halakist, a descendant of a learned family; probably born in Bohemia; lived about 1200-70. He mentions as his teachers two Bohemian scholars, Jacob ha-Laban and Isaac ben Jacob ha-Laban (author of "'Arugat ha-Bosem"). Led...
ISAAC NATHAN BEN KALONYMUS – French philosopher and controversialist; lived at Arles, perhaps at Avignon also, and in other places, in the fourteenth and fifteenth centuries. He belonged to the well-known Nathan family, which claimed its descent from David;...
ISAAC BEN NOAH COHEN SHAPIRA – Polish rabbi; lived in the sixteenth and seventeenth centuries; grandson of Hirsh and teacher of Joel Sirkes. He received his Talmudical training in the yeshibah of Ḥayyim ben Samuel of Kremenetz, and after filling the position...
ISAAC OF NORWICH (Isaac b. Eliab) – English financier of the twelfth and thirteenth centuries. He was among the Jews imprisoned by King John in 1210 ("Select Pleas of the Jewish Exchequer," ed. Riggs, p. 3). It is possible that at this time a house of his in...
ISAAC PULGAR – See Ibn Pulgar (Polgar, Polkar), Isaac ben Joseph.
ISAAC B. REUBEN ALBARGELONI (ALBARCELONI) – Spanish Talmudist and liturgical poet; born at Barcelona in 1043. He was a judge in the important community of Denia, where he became connected, probably as son-in-law, with ibn Alḥatosh. Among his later descendants was Moses b....
ISAAC BEN SAMSON HA-KOHEN – Bohemian Talmudist; died May 30, 1624, in Prague. He was assistant rabbi and magistrate of the community, and was son-in-law of the chief rabbi of Prague, Lewa ben Bezaleel, and the father of Ḥayyim ha-Kohen (rabbi at...
ISAAC, SAMUEL – Promoter of the Mersey Tunnel, near Liverpool, England; born at Chatham, England, 1812; died in London Nov. 22, 1886. He went to London as a young man, and carried on a large business as an army contractor in Jermyn street,...
ISAAC BEN SAMUEL OF ACRE – Palestinian cabalist; flourished in the thirteenth and fourteenth centuries. According to Azulai ("Shem ha-Gedolim,"s.v.), he was a pupil of Naḥmanides. He was at Acre when that town was taken by Al-Malik al-Ashraf, and was...
ISAAC BEN SAMUEL HA-LEVI – Polish rabbi; born at Vladimir, government of Volhynia, Russia, about 1580; died before 1646. He was the elder brother and teacher of David b. Samuel ha-Levi, author of the "Ṭure Zabab." As a young man he became rabbi of Chelm,...
ISAAC BEN SAMUEL OF NARBONNE – French scholar; flourished in the first half of the twelfth century. He is quoted in an anonymous commentary to Chronicles, written at Narbonne before 1140, as having given the author verbal explanations of various verses—I...
ISAAC BEN SAMUEL HA-SEFARDI – Spanish Biblical exegete; flourished in the eleventh and twelfth centuries. From his commentary, which is written in Arabic, it seems that Isaac b. Samuel lived in Palestine; Steinschneider ("Hebr. Bibl." vi. 114) concluded that...
ISAAC BEN SAMUEL HA-ZAḲEN – French tosafist and Biblical commentator; flourished at Ramerupt and Dampierre in the twelfth century. He died, according to Grätz ("Gesch." vi. 210), about 1200; according to Gross ("Gallia Judaica," p. 161, and "R. E. J." vii....
ISAAC BEN SHESHET BARFAT (RiBaSH) – Becomes Rabbi. Spanish Talmudic authority; born at Valencia in 1326; died at Algiers in 1408. He settled early in life at Barcelona, where he studied under Perez ha-Kohen, under Ḥasdai ben Judah, and especially under R. Nissim...
ISAAC IBN SID (ZAG; ÇAG) – Spanish astronomer; flourished at Toledo in the second half of the thirteenth century. From the surname "haḤazzan," given him by Isaac Israeli ("Yesod'Olam," iv. 30), it may be inferred that he was precentor at the synagogue....
ISAAC BEN SOLOMON – Liturgical poet; lived in Germany in the first half of the fourteenth century; author of the seliḥah "Ani hu ha-Geber," on the martyrs of the persecutions of 1337, which Isaac had witnessed. The signature to this seliḥah...
ISAAC BEN SOLOMON HA-KOHEN – Biblical commentator; lived at Constantinople in the middle of the sixteenth century. He was the author of a commentary on Job, published, with the text, at Constantinople in 1545. He wrote also a commentary on Pirḳe Abot, still...
ISAAC BEN TODROS – Spanish rabbi and Talmudist toward the end of the thirteenth century. He was the teacher of Shem-Ṭob ibn Gaon and Nathan b. Judah, and the friend of Baḥya ben Asher, who mentions him in his Pentateuch commentary (§ Beshallaḥ)....
ISAAC B. TODROS – French physician at Avignon during the second half of the fourteenth century. In 1373 he was the pupil of the astronomer Immanuel b. Jacob of Tarascon and Orange, the author of the "Shesh Kenafayim." Isaac was well read in...
ISAAC TYRNAU – Hungarian rabbi and ritualist; flourished in the fourteenth and fifteenth centuries. He was a pupil of Abraham Klausner of Vienna and of R. Shalom of Neustadt; one of his schoolfellows was Jacob Mölin (MaHaRiL). Grätz concluded...
ISAACS, ABRAM SAMUEL – American rabbi, professor, and editor; born in New York city Aug. 30, 1852. He was educated at New York University (B.A. 1871, M.A. 1873, Ph.D. 1878) and at the University of Breslau. Isaacs held professorships of Hebrew and of...
ISAACS, SIR HENRY AARON – Former Lord Mayor of London; born in that city Aug. 15, 1830. For a quarter of a century he labored in the best interests of the city of London. He agitated for improving the dwellings of the poor, and was mainly instrumental in...
ISAACS, ISAAC A. – Australian statesman and jurist; born at Melbourne, Victoria, Aug. 6, 1855; educated at Melbourne University, and admitted to the Victorian bar in 1880. From 1892 to 1901 he was a member of the Legislative Assembly, after which...

ISAAC BEN MORDECAI HA-LEVI – Rabbi of Lemberg; died in Cracow 1799. His father was chief of the yeshibah at Lemberg, and Isaac himself officiated as rabbi first in Leshnow, Galicia, afterward in Chelm, Poland. In 1776 he left the last-named place for the...

ISAAC BEN MOSES ELI (Ha-Sefardi) – Spanish mathematician of the fifteenth century; born at Oriola, Aragon. According to Steinschneider, he may have been one of the Spanish exiles of 1492; he probably went to Constantinople. His brother was possibly the Judah ben...

ISAAC BEN MOSES OF VIENNA – German halakist, a descendant of a learned family; probably born in Bohemia; lived about 1200-70. He mentions as his teachers two Bohemian scholars, Jacob ha-Laban and Isaac ben Jacob ha-Laban (author of "'Arugat ha-Bosem"). Led...

ISAAC NATHAN BEN KALONYMUS – French philosopher and controversialist; lived at Arles, perhaps at Avignon also, and in other places, in the fourteenth and fifteenth centuries. He belonged to the well-known Nathan family, which claimed its descent from David;...

ISAAC BEN NOAH COHEN SHAPIRA – Polish rabbi; lived in the sixteenth and seventeenth centuries; grandson of Hirsh and teacher of Joel Sirkes. He received his Talmudical training in the yeshibah of Ḥayyim ben Samuel of Kremenetz, and after filling the position...

ISAAC OF NORWICH (Isaac b. Eliab) – English financier of the twelfth and thirteenth centuries. He was among the Jews imprisoned by King John in 1210 ("Select Pleas of the Jewish Exchequer," ed. Riggs, p. 3). It is possible that at this time a house of his in...

ISAAC PULGAR – See Ibn Pulgar (Polgar, Polkar), Isaac ben Joseph.

ISAAC B. REUBEN ALBARGELONI (ALBARCELONI) – Spanish Talmudist and liturgical poet; born at Barcelona in 1043. He was a judge in the important community of Denia, where he became connected, probably as son-in-law, with ibn Alḥatosh. Among his later descendants was Moses b....

ISAAC BEN SAMSON HA-KOHEN – Bohemian Talmudist; died May 30, 1624, in Prague. He was assistant rabbi and magistrate of the community, and was son-in-law of the chief rabbi of Prague, Lewa ben Bezaleel, and the father of Ḥayyim ha-Kohen (rabbi at...

ISAAC, SAMUEL – Promoter of the Mersey Tunnel, near Liverpool, England; born at Chatham, England, 1812; died in London Nov. 22, 1886. He went to London as a young man, and carried on a large business as an army contractor in Jermyn street,...

ISAAC BEN SAMUEL OF ACRE – Palestinian cabalist; flourished in the thirteenth and fourteenth centuries. According to Azulai ("Shem ha-Gedolim,"s.v.), he was a pupil of Naḥmanides. He was at Acre when that town was taken by Al-Malik al-Ashraf, and was...

ISAAC BEN SAMUEL HA-LEVI – Polish rabbi; born at Vladimir, government of Volhynia, Russia, about 1580; died before 1646. He was the elder brother and teacher of David b. Samuel ha-Levi, author of the "Ṭure Zabab." As a young man he became rabbi of Chelm,...

ISAAC BEN SAMUEL OF NARBONNE – French scholar; flourished in the first half of the twelfth century. He is quoted in an anonymous commentary to Chronicles, written at Narbonne before 1140, as having given the author verbal explanations of various verses—I...

ISAAC BEN SAMUEL HA-SEFARDI – Spanish Biblical exegete; flourished in the eleventh and twelfth centuries. From his commentary, which is written in Arabic, it seems that Isaac b. Samuel lived in Palestine; Steinschneider ("Hebr. Bibl." vi. 114) concluded that...

ISAAC BEN SAMUEL HA-ZAḲEN – French tosafist and Biblical commentator; flourished at Ramerupt and Dampierre in the twelfth century. He died, according to Grätz ("Gesch." vi. 210), about 1200; according to Gross ("Gallia Judaica," p. 161, and "R. E. J." vii....

ISAAC BEN SHESHET BARFAT (RiBaSH) – Becomes Rabbi. Spanish Talmudic authority; born at Valencia in 1326; died at Algiers in 1408. He settled early in life at Barcelona, where he studied under Perez ha-Kohen, under Ḥasdai ben Judah, and especially under R. Nissim...

ISAAC IBN SID (ZAG; ÇAG) – Spanish astronomer; flourished at Toledo in the second half of the thirteenth century. From the surname "haḤazzan," given him by Isaac Israeli ("Yesod'Olam," iv. 30), it may be inferred that he was precentor at the synagogue....

ISAAC BEN SOLOMON – Liturgical poet; lived in Germany in the first half of the fourteenth century; author of the seliḥah "Ani hu ha-Geber," on the martyrs of the persecutions of 1337, which Isaac had witnessed. The signature to this seliḥah...

ISAAC BEN SOLOMON HA-KOHEN – Biblical commentator; lived at Constantinople in the middle of the sixteenth century. He was the author of a commentary on Job, published, with the text, at Constantinople in 1545. He wrote also a commentary on Pirḳe Abot, still...

ISAAC BEN TODROS – Spanish rabbi and Talmudist toward the end of the thirteenth century. He was the teacher of Shem-Ṭob ibn Gaon and Nathan b. Judah, and the friend of Baḥya ben Asher, who mentions him in his Pentateuch commentary (§ Beshallaḥ)....

ISAAC B. TODROS – French physician at Avignon during the second half of the fourteenth century. In 1373 he was the pupil of the astronomer Immanuel b. Jacob of Tarascon and Orange, the author of the "Shesh Kenafayim." Isaac was well read in...

ISAAC TYRNAU – Hungarian rabbi and ritualist; flourished in the fourteenth and fifteenth centuries. He was a pupil of Abraham Klausner of Vienna and of R. Shalom of Neustadt; one of his schoolfellows was Jacob Mölin (MaHaRiL). Grätz concluded...

ISAACS, ABRAM SAMUEL – American rabbi, professor, and editor; born in New York city Aug. 30, 1852. He was educated at New York University (B.A. 1871, M.A. 1873, Ph.D. 1878) and at the University of Breslau. Isaacs held professorships of Hebrew and of...

ISAACS, SIR HENRY AARON – Former Lord Mayor of London; born in that city Aug. 15, 1830. For a quarter of a century he labored in the best interests of the city of London. He agitated for improving the dwellings of the poor, and was mainly instrumental in...

ISAACS, ISAAC A. – Australian statesman and jurist; born at Melbourne, Victoria, Aug. 6, 1855; educated at Melbourne University, and admitted to the Victorian bar in 1880. From 1892 to 1901 he was a member of the Legislative Assembly, after which...