Baruch ben Isaac was a Tosafist and codifier who was born at Worms

Worms, Germany

Worms is a city in Rhineland-Palatinate, Germany, on the Rhine River. At the end of 2004, it had 85,829 inhabitants.Established by the Celts, who called it Borbetomagus, Worms today remains embattled with the cities Trier and Cologne over the title of "Oldest City in Germany." Worms is the only...

, but lived at Regensburg

Regensburg

Regensburg is a city in Bavaria, Germany, located at the confluence of the Danube and Regen rivers, at the northernmost bend in the Danube. To the east lies the Bavarian Forest. Regensburg is the capital of the Bavarian administrative region Upper Palatinate...

; he is sometimes called after the one and sometimes after the other city.

A pupil of the great Tosafist Isaac ben Samuel

Isaac ben Samuel

Isaac ben Samuel the Elder, also known as the Ri ha-Zaken, was a French tosafist and Biblical commentator. He flourished at Ramerupt and Dampierre, France in the twelfth century.- Biography :On his father's side Isaac was a grandson of R...

 of Dampierre

Dampierre

Dampierre is the name of several communes in France:*Dampierre, Aube, in the Aube département*Dampierre, Calvados, in the Calvados département*Dampierre, Haute-Marne, in the Haute-Marne département*Dampierre, Jura, in the Jura département...

, Baruch wrote Tosafot

Tosafot

The Tosafot or Tosafos 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...

 to several treatises (e.g., Nashim

Nashim

Nashim is the third order of the Mishnah , containing the laws related to women and family life...

, Nazir

Nazir (Talmud)

Nazir is a treatise of the Mishnah and the Tosefta and in both Talmuds, devoted chiefly to a discussion of the laws of the Nazirite laid down in Numbers 6:1-21. In the Tosefta its title is Nezirut...

, Shabbat

Moed

Moed is the second Order of the Mishnah, the first written recording of the Oral Torah of the Jewish people . Of the six orders of the Mishna, Moed is the third shortest. The order of Moed consists of 12 tractates:# Shabbat: or Shabbath deals with the 39 prohibitions of "work" on the Shabbat...

, Hullin); nearly all those extant on the order Zevahim are his. A. Epstein believes that the commentary on the Sifra

Sifra

Sifra is the Halakic midrash to Leviticus. It is frequently quoted in the Talmud, and the study of it followed that of the Mishnah, as appears from Tanḥuma, quoted in Or Zarua, i. 7b. Like Leviticus itself, the midrash is occasionally called "Torat Kohanim" , and in two passages also "Sifra debe...

 contained in the Munich MS. No. 59 is the work of this Baruch. He is the author also of the legal compendium, Sefer ha-Terumah (Book of the Heave-Offering, Venice, 1523; Zolkiev, 1811), containing the ordinances concerning slaughtering, permitted and forbidden food, the Sabbath

Shabbat

Shabbat is the seventh day of the Jewish week and a day of rest in Judaism. Shabbat is observed from a few minutes before sunset on Friday evening until a few minutes after when one would expect to be able to see three stars in the sky on Saturday night. The exact times, therefore, differ from...

, tefillin

Tefillin

Tefillin also called phylacteries are a set of small black leather boxes containing scrolls of parchment inscribed with verses from the Torah, which are worn by observant Jews during weekday morning prayers. Although "tefillin" is technically the plural form , it is loosely used as a singular as...

, etc. The book is one of the most important German codes, and was highly valued by contemporaries and successors. It is noteworthy by reason of the author's attempt to facilitate its use by presenting a synopsis of its contents, the first attempt at making a practical ritual codex in Germany.