Isaac ben Melchizedek

Rabbi
Isaac ben Melchizedek
Page from Ben Melchizedek's commentary, Kil'ayim 1:4 (Courtesy of the British Library)
Personal
Bornc. 1090
Diedc. 1160
ReligionJudaism
ProfessionRabbi
OccupationMishnaic exegete
Jewish leader
ProfessionRabbi
ResidenceSouthern Italy

Isaac ben Melchizedek (Hebrew: יצחק בן מלכי צדק; also known by the acronym Ribmaṣ ריבמץ; c. 1090–1160), was a rabbinic scholar from Siponto, Italy, and one of the first medieval scholars to have composed a commentary on the Mishnah, of which only his commentary on Seder Zera'im survives. Elements of the Mishnaic order of Taharot are also cited in his name by the Tosafists,[1] but the complete work is no longer extant.

  1. ^ Cf. the Sefer ha-Makhri'a (Leghorn, 1779) of Isaiah di Trani (nos 62, 86, et al.); Chaim Yosef David Azulai in Shem ha-Gedolim, i. 106 and E.E. Urbach, Tosafot, index. (e.g. Baba Metsi'a 30a, Tosafot s.v. אף עובד דניחא ליה)