Amerigo Vespucci, (born 1454?, Florence, Italy—died 1512, Sevilla, Spain), merchant and explorer-navigator who took part in early voyages to the New World (1499–1500 and 1501–02) and occupied the influential post of piloto mayor (“master navigator”) in Sevilla (1508–12).
Answer: In Mundus novus (“New World”), a pamphlet first published in Latin in 1503, Amerigo Vespucci purportedly corresponds with his patron, Lorenzo Pietro di Medici, about his voyage to the New World.