Jehuda Cresques

Son of another noted cartographer, Cresques Abraham[?], he was born in Majorca in present-day Spain. Together he and his father were the probable authors of the famous Catalan Atlas[?] of 1375. Born to a Jewish family, after the Aragonese persecutions of 1391 he converted to Christianity, at which time he took the name Jaume Riba (Jacobus Ribus, in Latin). As such, he would have been eligible to be the Portuguese coordinator in the 1420s, and a Mestre Jacome de Malhorca is recorded as holding that position. Most authorities accept that the two were the same person.