1400–1430; born Yehosúa ben Yosef) was a Spanish physician and religious writer who, after conversion to Catholicism from Judaism, wrote in Latin as Hieronymus de Sancta Fide (Jerome of the Holy Faith).
Either before or after the debate Hieronymus, at the request of Pope Benedict XIII, wrote two articles in which he heaped up accusations against the Jews and repeated old, apparently slanderous charges.
One of these articles was Tractatus Contra Perfidiam Judæorum; the other, De Judæis Erroribus ex Talmuth; they were published together as Hebræomastix (Zurich, 1552; Frankfurt am Main, 1602; Hamburg, n. d.), printed in the Bibliotheca Magna Veterum Patrum, Lyons, vol.
Articles in response were written by Don Vidal Benveniste, with the title "Ḳodesh ha-Ḳodashim", and by Isaac Nathan ben Kalonymus in his "Tokaḥat Mat'eh".
264), took part in the assassination of Pedro de Arbués, was arrested with other Marranos, and, in order to escape the disgrace of being publicly burned, killed himself in prison.