Author of the work "Toledot Aharon," in which beside every Biblical verse is noted the place where the verse is explained in the Talmud and Midrash. It is not known where or when the author lived; but it is probable that he lived in Germany after 1400. His work was first printed by Froben at Basel in 1580, together with the concordance "Meïr Natib." It was then printed separately at Freiburg-im-Breisgau in 1583, at Venice in 1591 and 1592, and often later together with the Bible text.
- Steinschneider, Cat. Bodl. cols. 725, 1142.