Spanish chief rabbi over the communities under the jurisdiction of the archiepiscopal see of Toledo. Don Pedro Tonorio, the archbishop, removed him from office for neglect of duty in the year 1388, and appointed in his place Ḥayen (Ḥayyim), the archbishop's private physician, described in the document as "a good, prudent, and very learned man, descended from a good family." The deed of appointment is given in J. Amados de los Rios, "Historia de los Judíos," 2:577 et seq.