(c. 1450—1498) navigator
(c. 1450–c. 1498)
Italian explorer and navigator. He and his son Sebastian (c. 1475–1557) sailed from Bristol in 1497 with letters patent from Henry VII of England in search of Asia, but in fact discovered the mainland of North America. The site of their arrival is uncertain (it may have been Cape Breton Island, Newfoundland, or Labrador). John Cabot returned to Bristol and undertook a second expedition in 1498. Sebastian made further voyages of exploration after his father's death, most notably to Brazil and the River Plate (1526).