Henry the Navigator at Sagres
1415-1460
Context: Henry the Navigator used the Algarve, particularly Lagos and Sagres, as the base for Portugal's pioneering voyages of exploration along the African coast.
Prince Henry, known to history as Henry the Navigator, was the third surviving son of King Joao I of Portugal and his English queen, Philippa of Lancaster. Although Henry himself never sailed beyond sight of the African coast, he became the driving force behind Portugal's maritime expansion in the 15th century, and his association with the Algarve, particularly the windswept promontory of Sagres, has become one of the defining stories of the region.
Henry's involvement in exploration began with the Portuguese capture of Ceuta in North Africa in 1415, a campaign in which the young prince distinguished himself militarily. The expedition to Ceuta exposed Henry to the riches of the trans-Saharan trade routes and planted the ambition that would dominate the rest of his life: to find a sea route around Africa to the source of the gold, spices and other commodities that flowed across the Sahara to the Mediterranean ports.
From the 1420s onwards, Henry sponsored a series of voyages of exploration down the west coast of Africa. His captains progressively pushed southward, rounding Cape Bojador in 1434, a psychological as much as a navigational barrier, and reaching Sierra Leone before Henry's death in 1460. These expeditions were launched primarily from Lagos, the Algarve port that served as the operational base for Portugal's early maritime ventures.
The role of Sagres in Henry's enterprise has been the subject of considerable scholarly debate. A persistent tradition holds that Henry established a school of navigation at Sagres, gathering cartographers, astronomers and mariners from across Europe and the Islamic world to pool their knowledge and plan voyages. The romantic appeal of this story is undeniable: the austere promontory jutting into the Atlantic, the prince studying charts by candlelight while the wind howled outside. However, modern historians have found little documentary evidence for a formal school. What is clear is that Henry maintained a household and administrative base in the Algarve, dividing his time between Lagos, Sagres and the nearby town of Raposeira.
The fortress at Sagres, the Fortaleza de Sagres, occupies a dramatic clifftop position overlooking the Atlantic. Within its walls is a large circular stone construction, the Rosa dos Ventos (wind compass), whose original purpose remains debated. The fortress was heavily damaged in the 1755 earthquake and substantially rebuilt, so the structures visible today are largely 18th-century rather than 15th-century.
Henry's legacy in the Algarve extends beyond Sagres. Lagos served as the departure point for the voyages that opened up the African coast, and it was to Lagos that the first shipments of West African gold, ivory and enslaved people were brought. Henry held the monopoly on trade with West Africa and profited substantially from these ventures, a fact that complicates any simple celebration of his achievements.
Henry the Navigator died on 13 November 1460 at Sagres. He was buried initially at Lagos cathedral before his remains were transferred to the Batalha Monastery. His legacy is the transformation of Portugal from a small Atlantic kingdom into a global maritime power, a transformation that began on the cliffs and harbours of the Algarve.
Impact
His sponsorship of maritime exploration from the Algarve launched the Age of Discovery and transformed Portugal into a global power.