ISSERLEIN, ISRAEL BEN PETHAHIAH
ISSERLEIN, ISRAEL BEN PETHAHIAH (1390–1460), the foremost rabbi of Germany in the 15th century. Isserlein was also called, after the towns in which he resided, Israel Marburg and Israel Neustadt, but he was mainly known as "the author of Terumat ha-Deshen," his chief work. Isserlein, the great grandson of *Israel of Krems (author of Haggahot Asheri), was born in Regensburg. His father died when Israel was a youth, so he was educated in Wiener-Neustadt in the home of his mother's brother Aaron Plumel (Blumlein). In 1421 his uncle and mother were killed during the Vienna persecutions. After staying for some time in Italy, Isserlein established his residence in Marburg, Styria. In 1445 he returned to Wiener-Neustadt where he was appointed rabbi and av bet din of the city and neighborhood. Here Isserlein spent the rest of his life, and through him Wiener-Neustadt became a center of study, attracting a large number of students, many of whom later served as rabbis in various communities. Outstanding scholars and communities addressed their problems to him and accepted his decisions. The most important posekim valued his books and highly praised his personality. Moses *Mintz
Isserlein lived a life of piety and asceticism. To some extent he may be regarded as continuing the tradition of the Ḥasidei Ashkenaz of the 13th century. In any case the influence of the Sefer Ḥasidim (see *Judah ha-Ḥasid) is recognizable in many of his rulings. One of his intimate pupils, *Joseph b. Moses, noted down in Leket Yosher (ed. by A. Freimann, 1903–04) Isserlein's daily behavior as well as what the author heard from him in his discourses. Isserlein's most important work is his responsa Terumat ha-Deshen, so called because it contained 354 (the numerical equivalent of דשן) sections. Most of these problems were presented by the author himself in order to investigate, clarify, and give practical halakhic rulings on them. They provide an authentic picture of contemporary Jewish life. In this work Isserlein emerges as an erudite and profound scholar, endowed with a logical mind. He based his decisions on the Talmud and mainly on the works of the French and German scholars. Among Spanish scholars he mentions in particular Isaac *Alfasi and *Maimonides; others, such as *Naḥmanides, he mentions only rarely, and still others, such as Solomon b. Abraham *Adret, not at all. Isserlein sought to restore the study of Talmud and other ancient sources to their former importance, because of a growing tendency to rely mainly upon the posekim. He decided in accordance with the view of the earlier authorities rather than the later. He was not deterred by the authority of *Jacob b. Asher, author of the Turim, when the latter differed from the geonim. Generally speaking, Isserlein adopted a strict line where biblical prohibitions were concerned, but in many matters he inclined toward leniency, particularly in order to establish harmonious relations with the Christians. Of his responsa, which he gave on actual cases, 267 have been preserved and arranged by one of his pupils in a collection, Pesakim u-Khetavim, which was published together with Terumat ha-Deshen (Venice, 1519, and elsewhere). His other works include Be'urim ("expositions") to Rashi's biblical commentary (Venice, 1519, new edition, Jerusalem, 1996); She'arim, on the laws of *issur ve-hetter (published in Jerusalem, 1978), which is mentioned in his Pesakim u-Khetavim and also in the Torat Ḥattat (Kracow, n.d.) and Darkhei Moshe of Moses *Isserles (extracts were published as glosses to the Sha'arei Dura (Venice ed., 1548) of Isaac of Dueren). Some piyyutim and prayers are also attributed to him. Some of Isserlein's responsa found their way into the collections of responsa by Jacob *Weil and of his pupil Israel *Bruna. Isserlein's works contain valuable material on the general history of the Jews of Germany in the 15th century and in particular on the organization of the communities and their spiritual life.
Female Family Members
All of the known women of Isserlein's family combined serious religious educations with solid business acumen. Since the Isserlein family belonged to the Austrian Jewish social elite of prominent rabbis and bankers, it seems likely that their wives also came from important families. Unfortunately, we do not have any information about their descent. Isserlein's mother (her name is not transmitted) was a very pious woman who was said to have blessed the Creator every morning with the words, "Who has not made me a beast" (LY 1: 7). Following her example, Isserlein did not allow any other form of this blessing. She was murdered, probably at the stake, during the 1421 persecutions of Jews in Vienna, the *Wiener Gesera. Isserlein fasted on the Ninth of Nissan, the anniversary of her death (LY 1: 115). Isserlein made one of his only two documented loans with Roslein, wife and later widow of his paternal uncle, Venzlein of Herzogenburg: in 1415, a Viennese couple pawned their house to them for 66 pounds (Geyer-Sailer, p. 510, n. 1708). Roslein lent money by herself as well (Geyer-Sailer, p. 511, n. 1713).
Isserlein was married to SCHOENDLEIN; highly educated and pious, she must have been of prominent descent. We have no evidence that she herself lent money, but she was very wealthy. For the holidays, she purchased a precious silk tallit with ornaments for her husband out of her private property (LY 1: 12). She lived in her own room which she examined personally for ḥametz before Passover and her testimony was trusted (LY 1: 80). She and her husband had four sons: Pethahiah (called Kechel), Abraham, Shalom, and Aaron. Isserlein's only daughter, Muschkat, died as a child "in the days of his old age"; perhaps he had remarried after Schoendlein's death (LY 2: 97). Schoendlein managed the yeshivah household consisting of family members, servants, and a number of students who spent the Sabbath with their master. On behalf of her husband, she wrote a responsum in Yiddish to a woman with a niddah problem (LY 2:19).
Isserlein's daughter-in-law, REDEL, probably the wife of his son Pethahiah/Kechel, studied with an old married man named Yudel Sofer in the house of the rabbi (LY 2: 37). Redel made minor loans to the prostitutes of Wiener Neustadt, an undertaking that Isserlein did not consider immoral (LY 2:16). He blessed his daughters-in-law on Sabbath eves by putting his hands on their heads (LY 1: 57). In 1442, PLUMEL, daughter of Isserlein's uncle Rabbi Aaron Blumlein and widow of his relative Rabbi Murklein of Marburg, signed a business document with a Hebrew confirmation and her signature.
[Martha Keil (2nd ed.)]
Berliner, in: MGWJ, 18 (1869), 130–5, 177–81, 224–33, 269–77, 315–23; Guedemann, Gesch Erz, 3 (1888), 14, 18, 23, 29, 85, 87, 93, and passim; Weiss, Dor, 5 (19044), 248–52; S. Krauss, Die Wiener Geserah vom Jahre 1421 (1920), index S.V.; Tamar, in: Sinai, 32 (1953), 175–85; S. Eidelberg, Jewish Life in Austria (1962). ADD. BIBLIOGRAPHY:
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