Jacob ben Asher
Jacob ben Asher (c. 1270–1340), also known as Ba'al ha-Turim as well as Yaakov ben haRosh, was an influential Medieval rabbinic authority. He is often referred to as the Ba'al ha-Turim ("Author of the Turim") or simply HaTur, after his main work, the Arba'ah Turim ("Four Columns").
Also recorded as Baal HaTurim · Ba'al HaTurim · Tur · the Tur
Jacob ben Asher

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- Name
- Jacob ben Asher
- Born
- c. 1269
- Birthplace
- Cologne, Holy Roman Empire
- Died
- c. 1343
- Place of death
- Toledo, Castile
- Nationality
- Byzantine Empire
- Occupation
- rabbi · writer · posek · theologian · pundit · scholar
- Teachers
- Asher ben Jehiel
- Known for
- Arba'ah Turim
- Languages
- Hebrew
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Documentary summary
Jacob ben Asher (c. 1270–1340), also known as Ba'al ha-Turim as well as Yaakov ben haRosh, was an influential Medieval rabbinic authority. He is often referred to as the Ba'al ha-Turim ("Author of the Turim") or simply HaTur, after his main work, the Arba'ah Turim ("Four Columns").
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wikidata · Q1376849 · wikipedia · Jacob ben Asher
In this article
Key facts
Key facts
• Religion — Judaism • Name — Jacob ben Asher • Born — c. 1269 • Birthplace — Cologne, Holy Roman Empire • Died — c. 1343 • Place of death — Toledo, Castile • Father — Asher ben Jehiel
Biography
Biography
He was probably born in the Holy Roman Empire at Cologne about 1270 and probably died at Toledo, then in the Kingdom of Castile, in 1340. He was the third son of the Asher ben Jehiel (known as the "Rosh"), a rabbi of the Holy Roman Empire who, in 1303, moved to Toledo in Castile, due to increasing persecution of Jews in his native Germany. Besides his father, who was his principal teacher, Jacob quotes very often in the Turim his elder brother Jehiel; once his brother Judah and once his uncle Chaim. Some say Jacob succeeded his father as the rabbi of the Jewish community of Toledo (Zacuto), while others say his brother Judah ben Asher did. His brothers were also rabbis of different communities in Iberia. He lived in abject poverty most of his life, and according to the Sephardic Community of Chios, is said to have fallen ill and died with his ten companions on the island of Chios, in Greece, whilst travelling.
Works
Works
• Arba'ah Turim, one of the most important halachic books of all time. The work was divided into four sections, each called a "tur," alluding to the columns of jewels on the High Priest's breastplate. • Sefer ha-Remazim, or "Kitzur Piske ha-Rosh" (Constantinople, 1575), an abridgment of his father's compendium of the Talmud, in which he condensed his father's decisions, omitting the casuistry. • Rimzei Ba'al ha-Turim or Perush ha-Torah le-R. Ya'akov Ba'al ha-Turim (Constantinople, 1500 and 1514), a short commentary on the Pentateuch, (actually short appetizers that start each section of his actual Torah commentary) which is printed in virtually all Jewish editions of the Pentateuch. These appetizers consist of mystical and symbolical references in the Torah text (see Masoretic Text), often using gematria and acronyms as well as other occurrences of particular words elsewhere in the Torah. • Perush Al ha-Torah, the full commentary on the Pentateuch (Zolkiev, 1806). Its content is taken mainly from Nachmanides (often copied word-for-word), but without his cabalistic and philosophical interpretations. Jacob quotes many other commentators, among them Saadia Gaon, Rashi, Joseph Kara and Abraham ibn Ezra. • Works of Jacob ben Ascher in the Gesamtkatalog der Wiegendrucke. Retrieved 2010-04-20
Identity and origins
Identity and origins
The authorities additionally record the headings Baal HaTurim, Ba'al HaTurim, Tur, the Tur and Baal Ha-Turim. His recorded language was Hebrew. His recorded confession was Judaism. He was the child of Asher ben Jehiel.
Identity
Identity
Jacob ben Asher is recorded as rabbi, writer, posek, theologian and pundit.

Postcard with a black-and-white illustrated portrait of Rabbi Jacob ben Asher (Ba'al HaTurim)
Meir Kunstadt
Life and career
Dated record
Life and career
The full dated record · 2 entries
1269
Jacob ben Asher was born in 1269 at Cologne.
1343
Jacob ben Asher died in 1343 at Toledo.
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Cologne.
Birth place
Toledo.
Death place
Primary material
Documents and archives
reference work
- “Jacob ben Asher”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
authority record
- Wikidata, structured authority record Q1376849: Jacob ben Asher
General reference · Wikidata
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.Translated from Hebrew biography in Bar Ilan CD-ROM
- 2.Kupfer, Ephraim. Jacob ben Asher. Encyclopaedia Judaica, First Edition. 9. 1214–1215. 1972.
- 3.Goldin, Hyman E. Kitzur Shulchan Aruch - Code of Jewish Law, Forward to the New Edition. Hebrew Publishing Company. 1961.
- 4.See Tur Orach Chaim, § 417
- 5.ib. § 49
- 6.The Sephardic Community of Chios. www.sephardicstudies.org.
References
Citations
References
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General reference
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 18 August 2026.
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