Diogo Cão
Encyclopedia
Diogo Cão was a Portuguese
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 explorer
Exploration
Exploration is the act of searching or traveling around a terrain for the purpose of discovery of resources or information. Exploration occurs in all non-sessile animal species, including humans...

 and one of the most remarkable navigators of the Age of Discovery
Age of Discovery
The Age of Discovery, also known as the Age of Exploration and the Great Navigations , was a period in history starting in the early 15th century and continuing into the early 17th century during which Europeans engaged in intensive exploration of the world, establishing direct contacts with...

, who made two voyages sailing along the west coast 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...

 to Namibia
Namibia
Namibia, officially the Republic of Namibia , is a country in southern Africa whose western border is the Atlantic Ocean. It shares land borders with Angola and Zambia to the north, Botswana to the east and South Africa to the south and east. It gained independence from South Africa on 21 March...

 in the 1480s.

Early life and family

He was born in Vila Real
Vila Real, Portugal
Vila Real is a city in Vila Real Municipality, Trás-os-Montes, northern Portugal.According to the 2001 census, the city had a total of 24,481 inhabitants.- History :...

 (some say in Évora
Évora
Évora is a municipality in Portugal. It has total area of with a population of 55,619 inhabitants. It is the seat of the Évora District and capital of the Alentejo region. The municipality is composed of 19 civil parishes, and is located in Évora District....

), in the middle of the 15th century, ca. 1452, the illegitimate son of Álvaro Fernandes or Gonçalves Cão, fidalgo
Fidalgo
Fidalgo , from Galician and Portuguese filho de algo—sometimes translated into English as "son of somebody" or "son of some "—is a traditional title used in Portugal to refer to a member of the titled or untitled nobility...

 of the Royal Household
Royal Household
A Royal Household in ancient and medieval monarchies formed the basis for the general government of the country as well as providing for the needs of the sovereign and his relations....

, himself the illegitimate son of Gonçalo Cão. He married and had four children: Pedro Cão, Manuel Cão, André Afonso Cão, and Isabel Cão.

Explorer

He was the first European known to sight and enter the Congo River
Congo River
The Congo River is a river in Africa, and is the deepest river in the world, with measured depths in excess of . It is the second largest river in the world by volume of water discharged, though it has only one-fifth the volume of the world's largest river, the Amazon...

 and to explore the West African coast between Cape St. Catherine and Cape Cross
Cape Cross
Cape Cross is a cape in the South Atlantic on the coast of Namibia, on the C34 highway some 60 kilometres north of Hentiesbaai and 120 km north of Swakopmund on the west coast of Namibia....

, almost from the equator
Equator
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

 to Walvis Bay
Walvis Bay
Walvis Bay , is a city in Namibia and the name of the bay on which it lies...

 in Namibia.

First voyage

When King John II of Portugal
John II of Portugal
John II , the Perfect Prince , was the thirteenth king of Portugal and the Algarves...

 revived the work of Henry the Navigator, he sent out Cão (about midsummer (?) 1482) to open up the African coast still further beyond the equator
Equator
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass....

. The mouth and estuary
Estuary
An estuary is a partly enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea....

 of the Congo was now discovered (perhaps in August 1482), and marked by a Padrão
Padrão
A padrão was a large stone cross inscribed with the coat of arms of Portugal that was placed as part of a land claim by numerous Portuguese explorers during the Portuguese Age of Discovery...

, or stone pillar (still existing, but only in fragments) erected on Shark Point, attesting the sovereignty of Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

; the great river was also ascended for a short distance, and intercourse was opened with the natives of the Bakongo
Kingdom of Kongo
The Kingdom of Kongo was an African kingdom located in west central Africa in what are now northern Angola, Cabinda, the Republic of the Congo, and the western portion of the Democratic Republic of the Congo...

 kingdom. Cão then coasted down along the present Angola
Angola
Angola, officially the Republic of Angola , is a country in south-central Africa bordered by Namibia on the south, the Democratic Republic of the Congo on the north, and Zambia on the east; its west coast is on the Atlantic Ocean with Luanda as its capital city...

 (Portuguese West Africa), and erected a second pillar, probably marking the termination of this voyage, at Cape Santa Maria (the Monte Negro of these first visitors). He certainly returned to Lisbon by the beginning of April 1484, when John II ennobled him, made him a cavaleiro (knight
Knight
A knight was a member of a class of lower nobility in the High Middle Ages.By the Late Middle Ages, the rank had become associated with the ideals of chivalry, a code of conduct for the perfect courtly Christian warrior....

) of his household
Household
The household is "the basic residential unit in which economic production, consumption, inheritance, child rearing, and shelter are organized and carried out"; [the household] "may or may not be synonymous with family"....

 (he was already an escudeiro or esquire
Esquire
Esquire is a term of West European origin . Depending on the country, the term has different meanings...

 in the same), and granted him an annuity and a coat of arms (April 8, 1484 and April 14, 1484). In the return he discovered the Island of Annobón
Annobón
Annobón may refer to:* Annobón Province* Annobonese language* Annobon people...

.

Second voyage

That Cão, on his second voyage of 1484-1486, was accompanied by Martin Behaim
Martin Behaim
Martin Behaim , was a German mariner, artist, cosmographer, astronomer, philosopher, geographer and explorer in service to the King of Portugal.-Biography:The Behaim family had immigrated to Nuremberg because of religious persecution around...

 (as alleged on the latters Nuremberg
Nuremberg
Nuremberg[p] is a city in the German state of Bavaria, in the administrative region of Middle Franconia. Situated on the Pegnitz river and the Rhine–Main–Danube Canal, it is located about north of Munich and is Franconia's largest city. The population is 505,664...

 globe of 1492) is very doubtful; but we know that the explorer revisited the Congo and erected two more pillars beyond the furthest of his previous voyage. The first at another Monte Negro, the second at Cape Cross
Cape Cross
Cape Cross is a cape in the South Atlantic on the coast of Namibia, on the C34 highway some 60 kilometres north of Hentiesbaai and 120 km north of Swakopmund on the west coast of Namibia....

. Cape Cross probably marking the end of his progress southward, advancing 1,400 kilometers. He raised the river Congo which he considered as the access road towards the realm of Prester John
Prester John
The legends of Prester John were popular in Europe from the 12th through the 17th centuries, and told of a Christian patriarch and king said to rule over a Christian nation lost amidst the Muslims and pagans in the Orient. Written accounts of this kingdom are variegated collections of medieval...

 up to the neighborhood of the site of Matadi
Matadi
Matadi is the chief sea port of the Democratic Republic of the Congo and the capital of the Bas-Congo province. It has a population of 245,862 . Matadi is situated on the left bank of the Congo River from the mouth and below the last navigable point before rapids make the river impassable for a...

. There, in October or November, 1485, near the falls of Ielala, he left an inscription engraved on the stone which testifies of its passage and that of his men : " Aqui chegaram os navios do esclarecido rei D.João II de Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 - Diogo Cão, Pero Anes, Pero da Costa." (" Here arrived the ships of king John II of Portugal
John II of Portugal
John II , the Perfect Prince , was the thirteenth king of Portugal and the Algarves...

 – Diogo Cão, Pero Anes, Pero da Costa”.

According to one authority (a legend on the 1489 map of Henricus Martellus Germanus
Henricus Martellus Germanus
Henricus Martellus Germanus is the latinized name of Heinrich Hammer, a German cartographer who lived and worked in Florence from 1480 to 1496....

), Cão died off Cape Cross; but João de Barros
João de Barros
João de Barros , called the Portuguese Livy, is one of the first great Portuguese historians, most famous for his Décadas da Ásia , a history of the Portuguese in India and Asia.-Early years:...

 and others wrote of his return to the Congo, and subsequent taking of a native envoy to Portugal. The four pillars set up by Cão on his two voyages have all been discovered in situ, and the inscriptions on two of them from Cape Santa Maria and Cape Cross, dated 1482 and 1485 respectively, are still to be read and have been printed; the Cape Cross padrão is now at Kiel
Kiel
Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...

(replaced on the spot by a granite facsimile); those from the Congo estuary and the more southerly Monte Negro are in the Museum of the Lisbon Geographical Society.

Sources

  • Barros, João de. Décadas da Ásia, Década I. bk. III., esp. ch. 3;
  • Ruy de Pina, Chronica d'el Rei D. João II.;
  • Garcia de Resende, Chronica;
  • Luciano Cordeiro, Diogo Cão in Boletim da Sociedade de Geografia de Lisboa, 1892;
  • E; G. Ravenstein, Voyages of Diogo Cão, &c., in Geog. Jnl. vol. xvi. (1900), also Geog. Jnl. xxxi. (1908).
  • António da Costa de Albuquerque de Sousa Lara, 2nd Count de Guedes, Vasco de Bettencourt de Faria Machado e Sampaio and Marcelo Olavo Correia de Azevedo, Ascendências Reais de Sua Alteza Real a Senhora Dona Isabel de Herédia Duquesa de Bragança, I, pelos Costados Herédia, Bettencourt e Meneses da Ilha da Madeira" (Universitária Editora, 1999)
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