Isaac ben Samuel the Elder (c. 1115 – c. 1184), also known as the Ri ha-Zaken (Hebrew: ר״י הזקן), was a French tosafist and Biblical commentator. He flourished at Ramerupt and Dampierre, France in the twelfth century. He is the father of Elhanan ben Isaac of Dampierre.
Biography Through his mother he was a great-grandson of Rashi and through his father he was a grandson of Simhah ben Samuel of Vitry. He was surnamed "ha-Zaḳen" (the elder) to distinguish him from another tosafist of the same name, Isaac ben Abraham surnamed "ha-Baḥur" (the younger). He is often quoted as R. Isaac of Dampierre.Maimuniyyot, Ma'akalot Asurot, No. 5; Shibbolei ha-Leket 2:40 but it seems that he lived first at Ramerupt, where his maternal grandfather resided.Sefer ha-Nayyar, p. 162; Maimuniyyot, l.c. It was also at Ramerupt that he studied under his uncle Rabbeinu TamLuria, Responsa, No. 29 after the latter had gone to Troyes, Isaac b. Samuel directed his school.
Isaac settled at Dampierre later, and founded there a flourishing and well-attended school.Or Zarua, 1:126 It is said that he had sixty pupils, each of whom, besides being generally well grounded in Talmud, knew an entire treatise by heart, so that the whole Talmud was stored in the memories of his pupils.Menahem, Tzedah la-Derek, Introduction As he lived under Philip Augustus, at whose hands the Jews suffered much, Isaac prohibited the buying of confiscated Jewish property, and ordered that any so bought be restored to its original owner. A particular interest attaches to one of his responsa, in which he relies on the oral testimony of his aunt, the wife of R. Isaac b. Meïr, and on that of the wife of R. Eleazar of Worms, a great-granddaughter of Rashi.Sefer ha-Nayyar, p. 167a
He died, according to Heinrich GraetzGesch. vi. 210 about 1200; according to Henri GrossGallia Judaica, p. 161, and "R. E. J." vii. 76 between 1185 and 1195; and as he is known to have reached an advanced age, Gross supposes that he was not born later than 1115. On the other hand, MichaelHeimann, Michael (1891) Or ha-Ḥayyim, Frankfurt a. M. (in Hebrew), p. 512 says that as Isaac b. Samuel was spoken of as "the sainted master"Sefer ha-Terumah, §§ 131, 161; Tosafot, Zevachim 12b, 59b a term generally given to martyrs, he may have been killed at the same time as his son Elhanan (1184).
Tosafot Isaac's tosafot completed the commentary of Rashi on the Talmud (Romm included in his edition of the Talmud the commentary of Abraham of Montpellier on Kiddushin, misidentified as Isaac's tosafot.). He also compiled and edited with great erudition all the preceding explanations to Rashi's commentary. His first collection was entitled Tosefot Yeshanim, which, however, was afterward revised and developed. He is quoted on almost every page of the Tosafot, and in various works, especially in the Sefer ha-Terumah of his pupil Baruch ben Isaac of Worms, and in the Or Zarua of Isaac ben Moses.
Isaac is mentioned as a Biblical commentator by Judah ben Eliezer,Minḥat Yehudah, p. 8b who quotes also a work of Isaac's entitled Yalkutei Midrash;ib. p. 22a by Isaac ha-Levi; by Hezekiah ben Manoah in his Ḥazzeḳuni; and in two other commentaries.see Kerem Ḥemed, vii. 68 Isaac is supposed to be the author also of several liturgical poems, of a piyyuṭ to the hafṭarah,Landshuth, Ammudei haAvodah, p. 108 and of a piyyuṭ for Purim.Machzor Vitry, No. 255; compare Luzzatto in Berliner's Magazin, v. 27, Hebr. part The authorship of these piyyuṭim may, however, belong to the liturgical writer Isaac ben Samuel of Narbonne.
References
It has the following bibliography: Azulai, Shem ha-Gedolim, i.; Heimann, Michael (1891) Or ha-Ḥayyim, Frankfurt a. M. (in Hebrew), pp. 511–513; Isaac Hirsch Weiss, Dor, iv. 286, 342, 349; Heinrich Grätz, Gesch. 3d ed., vi. 210, 211, 214; Gross, Heinrich (1897). Gallia Judaica : dictionnaire géographique de la France d'après les sources rabbiniques (in French). Paris: Leopold Cerf. pp. 161–168, 638; idem, in R. E. J. vii. 76; Adolf Neubauer, ib. xvii. 67; Leopold Zunz, Z. G. p. 33, passim.