Very little is known about the life of Gaspar de Lemos. It is postulated that he was a part of the Morgada family, originally from the Kingdom of Galiza, but came to Portugal during the reign of Afonso IV (1325–1357). Upon his arrival back to Europe after participation in the exploration of the new world, the name Gaspar de Lemos disappears from the historical record, only to reappear later between 1536 and 1537 in India, under the service of Martim Afonso de Sousa. No further information has been discovered.

Gaspar de Lemos was the commander of a supply ship from Pedro Álvares Cabral's fleet. Cabral chose him to return to Portugal after the sighting of the new world to let King Manuel I know of its existence. Lemos returned to Portugal bringing Pedro Vaz de Caminha's letter announcing the "discovery" of Brazil.

This expedition is credited with:

• The discovery of the archipelago of Fernando de Noronha
• The discovery of the bay that he named Bay of All Saints on November 1, 1501
• The discovery of the Bay of Guanabara, which he mistook as a river and named Rio de Janeiro on January 1, 1502
• The discovery of the island of São Vicente, on January 22, 1502.

The Florentine Amerigo Vespucci, with his four sailing ships that sailed from Cadiz on May 18, 1499, made a stopover in the Canaries, and in twenty-four days of crossing they reached the shores of the present Guiana.  Here they divided: two, with Hojeda and the pilot Juan de la Cosa, headed north to recognize the coasts already sighted by Columbus; two, under the command of Vespucci, turned at noon, in search of the legendary Capo Cattigare, the promontory placed by Ptolemy at 9° of southern latitude, to try to reach, beyond that, the Sinus Magnus.  On this trip Vespucci discovered, six months before Vincenzo Yáñez Pinzón, the river of the Amazons, that he went up for tens of miles and, after having cut for first the Equator to the west, he went beyond the 6° of south latitude. So it was officially Amerigo Vespucci who discovered Brazil a few months before Pedro Álvares Cabral.

• Exploration of Asia

^[1]

^[2]

^[3]