Isaac ben Todros was a Spanish

rabbi A rabbi () is a spiritual leader or religious teacher in Judaism. One becomes a rabbi by being ordained by another rabbi – known as ''semikha'' – following a course of study of Jewish history and texts such as the Talmud. The basic form of ...

and Talmudist who lived toward the end of the thirteenth century. He was the teacher of Shem Tov ibn Gaon and Nathan b. Judah, and the friend of

Bahya ben Asher Bahya ben Asher ibn Halawa (, 1255–1340) was a rabbi and scholar of Judaism, best known as a commentator on the Hebrew Bible. He is one of two scholars now referred to as Rabbeinu Behaye, the other being philosopher Bahya ibn Paquda. Biograp ...

, who mentions him in his Pentateuch commentary. He is also mentioned by

Mordechai ben Hillel Mordechai ben Hillel HaKohen ( he, "המָּרְדֳּכַי" ,רבי מרדכי בן הלל הכהן; c. 1250–1298), also known as The Mordechai, was a 13th-century German rabbi and posek. His chief legal commentary on the Talmud, referred to as ...

(d. 1310); and was still living in 1305; as on July 26, 1305 he subscribed to

Solomon ben Adret Shlomo ben Avraham ibn Aderet ( he, שלמה בן אברהם אבן אדרת or Solomon son of Abraham son of Aderet) (1235 – 1310) was a medieval rabbi, halakhist, and Talmudist. He is widely known as the Rashba (Hebrew: ), the Hebrew acron ...

's excommunication against the study of metaphysics by anyone under the age of thirty. He was probably one of the rabbis of

Barcelona Barcelona ( , , ) is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous municipality of Spain. With a population of 1.6 million within ...

. He wrote a commentary on the

Machzor The ''machzor'' ( he, מחזור, plural ''machzorim'', and , respectively) is the prayer book which is used by Jews on the High Holy Days of Rosh Hashanah and Yom Kippur. Many Jews also make use of specialized ''machzorim'' on the three p ...

, and a

halakhic ''Halakha'' (; he, הֲלָכָה, ), also transliterated as ''halacha'', ''halakhah'', and ''halocho'' ( ), is the collective body of Jewish religious laws which is derived from the written and Oral Torah. Halakha is based on biblical comman ...

commentary to the "Azharot" of

Solomon ibn Gabirol Solomon ibn Gabirol or Solomon ben Judah ( he, ר׳ שְׁלֹמֹה בֶּן יְהוּדָה אִבְּן גָּבִּירוֹל, Shlomo Ben Yehuda ibn Gabirol, ; ar, أبو أيوب سليمان بن يحيى بن جبيرول, ’Abū ’Ayy ...

. He is probably not to be identified with the Todros ben Isaac of Gerona (Brüll) who is praised by

Kalonymus ben Kalonymus Kalonymus ben Kalonymus ben Meir (Hebrew: קלונימוס בן קלונימוס), also romanized as Qalonymos ben Qalonymos or Calonym ben Calonym, also known as Maestro Calo (Arles, 1286 – died after 1328) was a Jewish philosopher and transl ...

(1323) at the end of his "Even Bohan," and who wrote

novellae In Roman law, a novel ( la, novella constitutio, "new decree"; gr, νεαρά, neara) is a new decree or edict, in other words a new law. The term was used from the fourth century AD onwards and was specifically used for laws issued after the publi ...

on Nazir.Neubauer, "Cat. Bodl. Hebr. MSS." No. 448, 1

References

*{{JewishEncyclopedia, url=http://www.jewishencyclopedia.com/articles/8222-isaac-ben-todros, article=ISAAC BEN TODROS 13th-century Catalan rabbis