ר׳ יעקב בן הרא״ש

ר׳ יעקב בן הרא״ש (c.1269–c.1343), known as בעל הטורים or simply הטור, was one of medieval Judaism’s most influential halakhic codifiers. Born in Cologne, he learned principally from his father, ר׳ אשר בן יחיאל. When the family fled the Rhineland in 1303, he passed through Barcelona and ultimately settled in Toledo, where his father headed the community and court. Living with unusual personal austerity, he declined salaried rabbinic office but served as a scholar, court participant and editor of his father’s teachings. His ארבעה טורים reorganized practical Jewish law into four subject divisions—אורח חיים, יורה דעה, אבן העזר and חושן משפט. Its structure mediated Ashkenazi and Sephardi traditions and became the framework for בית יוסף and שולחן ערוך by ר׳ יוסף קארו. His concise Torah commentary, popularly called בעל הטורים, became famous for textual allusion and gematria. Because medieval sources disagree, his exact birth and death dates remain approximate.