Pedro Reinel was a Portuguese cartographer of the 16th century, author of one of the oldest signed Portuguese nautical chart

Nautical chart

A nautical chart is a graphic representation of a maritime area and adjacent coastal regions. Depending on the scale of the chart, it may show depths of water and heights of land , natural features of the seabed, details of the coastline, navigational hazards, locations of natural and man-made aids...

 (c. 1492). That is a portolan type of chart, covering western Europe

Europe

Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

 and part of Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, and already reflecting the explorations made by Diogo Cão

Diogo Cão

Diogo Cão was a Portuguese explorer and one of the most remarkable navigators of the Age of Discovery, who made two voyages sailing along the west coast of Africa to Namibia in the 1480s.-Early life and family:...

 in 1482-1485. With his son Jorge Reinel

Jorge Reinel

Jorge Reinel born Lisbon renown Portuguese cartographer and instructor in cartography, son of the well-known cartographer Pedro Reinel. In 1519 in Seville he participated in the maps designed for the trip of his countryman Ferdinand Magellan, and his depiction of the Maluku Islands served as a...

 (c. 1502 - c. 1572), and the cartographer Lopo Homem

Lopo Homem

Lopo Homem was a Portuguese cartographer and cosmographer.- Biography :In 1517 King Manuel I of Portugal handed Lopo Homem a charter entitling him the privilege of certifying and amending all compass needles in vessels. This charter was revalidated in 1524 by King John III of Portugal...

, he participated in the construction of the well-known Miller Atlas

Miller Atlas

The Miller Atlas also known as Lopo Homem-Reineis Atlas is a Portuguese richly illustrated atlas dated from 1519, including a dozen charts...

 (1519). His Atlantic Chart of c. 1504 is the earliest known nautical chart with a scale of latitudes, and the first to depict a wind rose

Wind rose

A wind rose is a graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location. Historically, wind roses were predecessors of the compass rose , as there was no differentiation between a cardinal direction and the wind...

 with a clearly drawn fleur-de-lys.