Abraham Cresques whose real name was probably Cresques Abraham, was a 14th-century Jewish

Jews

The Jews , also known as the Jewish people, are a nation and ethnoreligious group originating in the Israelites or Hebrews of the Ancient Near East. The Jewish ethnicity, nationality, and religion are strongly interrelated, as Judaism is the traditional faith of the Jewish nation...

 cartographer

Cartography

Cartography is the study and practice of making maps. Combining science, aesthetics, and technique, cartography builds on the premise that reality can be modeled in ways that communicate spatial information effectively.The fundamental problems of traditional cartography are to:*Set the map's...

 from Palma, Majorca (then part of the Crown of Aragon

Crown of Aragon

The Crown of Aragon Corona d'Aragón Corona d'Aragó Corona Aragonum controlling a large portion of the present-day eastern Spain and southeastern France, as well as some of the major islands and mainland possessions stretching across the Mediterranean as far as Greece...

). In collaboration with his son Jehuda Cresques

Jehuda Cresques

Jehuda Cresques , also known as Jafudà Cresques, Jaume Riba, and Cresques lo Juheu was a Catalan cartographer, and was once believed to be the man who coordinated the discoveries of the Portuguese naval school at Sagres in the early 15th century.Son of Abraham Cresques, a famous Jewish...

, Cresques is credited with the authorship of the celebrated Catalan Atlas

Catalan Atlas

The Catalan Atlas is the most important Catalan map of the medieval period. It was produced by the Majorcan cartographic school and is attributed to Cresques Abraham , a Jewish book illuminator who was self-described as being a master of the maps of the world as well as compasses...

 of 1375.
A Majorcan Jew, Cresques was a master map-maker and builder of clocks, compass

Compass

A compass is a navigational instrument that shows directions in a frame of reference that is stationary relative to the surface of the earth. The frame of reference defines the four cardinal directions – north, south, east, and west. Intermediate directions are also defined...

es, and other nautical instruments. He was a leading member of the Majorcan cartographic school

Majorcan cartographic school

The Majorcan cartographic school is the term coined by historians to refer to the collection of cartographers, cosmographers and navigational instrument-makers that flourished in Majorca in the 14th and 15th Centuries. The label is usually inclusive of those who worked in mainland Catalonia...

.

Abraham Cresques's real name was probably Cresques Abraham (Cresques being his personal name, Abraham his patronym), but the order is usually flipped in most subsequent literature.