הלכה וביקורת בדרום צרפת: ר' דוד בן שאול הלכות יין נסך

David ben Saul, a rabbinic sage active in southern France during the mid-thirteenth century, is known to scholars primarily because of his attempt (alongside his teacher Solomon ben Abraham of Montpellier) to eradicate the rational philosophy of Maimonides from the Jewish community of Provence and Languedoc. This article examines a letter written by David ben Saul in which he criticized a halakhic work on the laws of kosher wine. The critique reveals further significant aspects of Rabbi David's personality as a zealot opposed not only to philosophical innovations but also to new halakhic positions - whether voiced by Maimonides or by the French Tosafists. The article analyzes a number of the legal positions that David ben Saul rejected, placing his opposition in its historical and legal context. An appendix to the article presents a new section of the letter, published from a manuscript in the Bibliothèque nationale de France, in which David ben Saul attacked the legal rulings of Rabbi Jacob ben Meir of Ramerupt (Rabenu Tam).