João Gonçalves Zarco
…Navigator's household. In his service at an early age, Zarco commanded the caravels guarding the coast of the Algarve from Muslim incursions, was at the conquest of Ceuta, and later led the caravels that recognized the island of Porto Santo in 1418 to 1419 and afterward, the island of Madeira 1419 to 1420. He founded the…