a Portuguese navigator, explorer and corsair, prominent in the European age of discovery. He had an early career in Portugal and later served the King of France.His writings were published as Les voyages avantureux du Capitaine Ian Alfonce, the Rutter of Jean Alphonse and La cosmographie avec l’espère et régime du soleil du nord par Jean Fonteneau dit Alfonse de Saintonge, capitaine-pilote de François Ier.
