Sebastian Cabot

Cabot, Sebastian (1476–1557), explorer and navigator, son of John Cabot. Appointed pilot-major of Spain in 1518, he led an expedition to the Rio de la Plata region of South America in 1526. Its failure led to his banishment from Spain. Though eventually reinstated, he went to England in 1548, and later became governor of the Merchant Adventurers Company.