 He appears to have remained in Majorca for a considerable time and to have become known to the people there as ""lo jueu buscoler"", the map Jew, or ""el jueu de les bruixoles"", the compass Jew.It has long been believed that Jehuda Cresques is the same person as 'Mestre Jacome', a Majorcan cartographer induced by the Portuguese prince Henry the Navigator to move to Portugal in the 1420s to train Portuguese map-makers in Majorcan-style cartography.