Rabbi Isaac ben Mordecai of Regensburg (
Hebrew
Hebrew (; ; ) is a Northwest Semitic language of the Afroasiatic language family. Historically, it is one of the spoken languages of the Israelites and their longest-surviving descendants, the Jews and Samaritans. It was largely preserved ...
: יצחק בן מרדכי מרגנסבורג) also known by his acronym Ribam (Rabbi Isaac Ben Mordecai) was a 12th century
German
German(s) may refer to:
* Germany (of or related to)
**Germania (historical use)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizens of Germany, see also German nationality law
**Ger ...
Tosafist
The Tosafot, Tosafos or Tosfot ( he, תוספות) are medieval commentaries on the Talmud. They take the form of critical and explanatory glosses, printed, in almost all Talmud editions, on the outer margin and opposite Rashi's notes.
The auth ...
.
Biography
Born in
Prague
Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate ...
,
Bohemia
Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohem ...
, in his early years, Rabbi Isaac studied in
Regensburg
Regensburg or is a city in eastern Bavaria, at the confluence of the Danube, Naab and Regen rivers. It is capital of the Upper Palatinate subregion of the state in the south of Germany. With more than 150,000 inhabitants, Regensburg is the f ...
under
Rabbeinu Tam
Jacob ben Meir (1100 – 9 June 1171 (4 Tammuz)), best known as Rabbeinu Tam ( he, רבינו תם), was one of the most renowned Ashkenazi Jewish rabbis and leading French Tosafists, a leading ''halakhic'' authority in his generation, and a gra ...
and
Isaac ben Asher ha-Levi Rabbi Isaac ben Asher HaLevi or Riba (ריב"א) is the earliest known Tosafist, son-in-law of Eliakim ben Meshullam and pupil of Rashi. He flourished in Speyer during the 11th century.
He is cited under the name of "Tosafot Riba," in the ''Temim ...
. In the following years, he served as the head of the city's
bet din
A beit din ( he, בית דין, Bet Din, house of judgment, , Ashkenazic: ''beis din'', plural: batei din) is a rabbinical court of Judaism. In ancient times, it was the building block of the legal system in the Biblical Land of Israel. Today, it ...
. He compiled
tosafot
The Tosafot, Tosafos or Tosfot ( he, תוספות) are medieval commentaries on the Talmud. They take the form of critical and explanatory glosses, printed, in almost all Talmud editions, on the outer margin and opposite Rashi's notes.
The auth ...
to most tractates of the
Talmud
The Talmud (; he, , Talmūḏ) is the central text of Rabbinic Judaism and the primary source of Jewish religious law (''halakha'') and Jewish theology. Until the advent of modernity, in nearly all Jewish communities, the Talmud was the cente ...
. A large number of his tosafot are on the tractate
Bava Batra
Bava Batra (also Baba Batra; Talmudic Aramaic: בָּבָא בַּתְרָא "The Last Gate") is the third of the three Talmudic tractates in the Talmud in the order Nezikin; it deals with a person's responsibilities and rights as the owner of pr ...
, which are included in the first printed edition of the Talmud. He also known to have written tosafot on tractates
Pesaḥim
Pesachim ( he, פְּסָחִים, lit. "Paschal lambs" or "Passovers"), also spelled Pesahim, is the third tractate of '' Seder Moed'' ("Order of Festivals") of the Mishnah and of the Talmud. The tractate discusses the topics related to the Jew ...
,
Mo'ed Katan
Mo'ed Katan or Mo'ed Qatan (Hebrew: מועד קטן, lit. "little festival") is the eleventh tractate of ''Seder Moed'' of the Mishnah and the Talmud. It is concerned with the laws of the days between the first and last days of Passover and Sukk ...
,
Bava Kamma
Bava Kamma ( tmr, בָּבָא קַמָּא, translit=Bāḇā Qammā, translation=The First Gate) is the first of a series of three Talmudic tractates in the order Nezikin ("Damages") that deal with civil matters such as damages and torts. The o ...
,
Shabbat
Shabbat (, , or ; he, שַׁבָּת, Šabbāṯ, , ) or the Sabbath (), also called Shabbos (, ) by Ashkenazim, is Judaism's day of rest on the seventh day of the week—i.e., Saturday. On this day, religious Jews remember the biblical storie ...
,
Ketubbot,
Gittin
Gittin (Hebrew: ) is a tractate of the Mishnah and the Talmud, and is part of the order of Nashim. The content of the tractate primarily deals with the legal provisions related to halakhic divorce, in particular, the laws relating to the ''Get'' ...
,
Sotah
Sotah ( he, סוֹטָה or he, שׂוֹטָה) is a tractate of the Talmud in Rabbinic Judaism. The tractate explains the ordeal of the bitter water, a trial by ordeal of a woman suspected of adultery, which is prescribed by the Book of Number ...
,
Nazir, and
Bava Meẓia. In his later life, Rabbi Isaac became embroiled in a controversy with
Eliezer ben Nathan of Mainz, who criticized several of Rabbi Isaac's statements and in his reply, Rabbi Isaac is said to have treated him with great respect. Among his pupils where
Ephraim ben Isaac of Regensburg
Ephraim ben Isaac ben Abraham of Regensburg (Hebrew: אפרים בן יצחק מרגנסבורג; 1175) also sometimes called Ben Yakir, was a 12th-century German tosafist and liturgical poet who was known for his keen intellect, his numerous piy ...
.
References
{{Rishonim
12th-century German rabbis
Tosafists