Isaiah d'Trani

Isaiah d'Trani was a prominent Italian tosafist and prolific author, sometimes referred to as Rid HaZaken (the elder) or Rid HaRishon (the first) to differentiate him from his grandson known by the same acronym. He is best known for his Talmudic commentary, Tosafot Rid, of which he composed as many as six editions to some tractates. He also wrote: Piskei Rid, a legal digest; Sefer HaMakhria, essays on Jewish law; and a commentary to the Torah, which was discovered and printed by Chida in his Pnei David. His writings mention other works as well, which have never been published.