Abraham of Beja
From William Milwitzky:
A learned Jew who lived in Alemtejo, Portugal, during the latter half of the fifteenth century. Being an extensive traveler, he knew many languages, and for that reason King John II. ordered him to accompany Joseph Zapateiro of Lamego upon the latter's expedition to discover Covilha, who had himself been sent in search of the mythical Christian king, Prester John. They discovered Covilham in Lower Egypt, and brought back news of his welfare, together with information that led to the epoch-making voyage of Vasco da Gama.
A learned Jew who lived in Alemtejo, Portugal, during the latter half of the fifteenth century. Being an extensive traveler, he knew many languages, and for that reason King John II. ordered him to accompany Joseph Zapateiro of Lamego upon the latter's expedition to discover Covilha, who had himself been sent in search of the mythical Christian king, Prester John. They discovered Covilham in Lower Egypt, and brought back news of his welfare, together with information that led to the epoch-making voyage of Vasco da Gama.
Jump to the Letters from Pêro da Covilhã.