Aaron ben Meshullam ben Jacob of Lunel was a French Jewish ritualist who flourished about the end of the twelfth century in Lunel and died in about 1210 (according to the "Scepter of Judah"). He was one of the five sons of Meshullam ben Jacob and seems to have written a book on Dinim, from which the author of the "Sefer Asufot" (MS. in the Montefiore College Library) quotes several passages.[1] His decisions and interpretations are also referred to in the "Sefer ha-Hashlamah" of his nephew, Rabbi Meshullam, who calls him "ḥakam" for his general knowledge.[2] He was an advocate for the spread of scientific literacy among the Jewish intelligentsia.[3]