Jewish cartographer, born in Mallorca. In time the Kings Pedro IV of Aragon and his son Juan achieved fame as author of geographical maps and compasses. In 1381, the Infante sent as a gift to Carlos VI of France his map of the world. It seems to be his work the famous Catalan Atlas preserved in the Bibliothèque Nationale in Paris. In his work was helping his son, Judá Crescas, which in the persecutions of end of the century was converted to Christianity and changed its name to the Jaime Ribas joined Barcelona and Portugal.
BAER,. history of the Jews in Christian Spain. 2 vol. (Madrid: Altalena, 1981).
SÁENZ-BADILLOS, A. Hebrew literature in medieval Spain. (Madrid: Fundación Amigos de Sefarad, 1991).
SÁENZ-BADILLOS, TARGARONA, J. Dictionary of Jewish authors (Sefarad. 10th - 15th centuries). (Córdoba: El Almendro, 1990).