The Pilot Major (Spanish: Piloto Mayor) or Pilot-Major of Spain was an important official of the Casa de Contratación, a crown agency of the Spanish Empire, with specific responsibilities in mapmaking and the licensing of nautical pilots.[1]
On 6 August 1508, the Spanish government ordered the establishment of the Padrón Real as a template for the official map used by every Spanish ship in the 16th century to avoid confusion from a multitude of sailing charts. A commission consisting of the best pilots in the kingdom was constituted, with Amerigo Vespucci as its president and first Pilot Major of Spain, the latter an office created for Vespucci.[2] Pilots returning to Spain were required to report new geographical information to the Pilot Major, who, in twice-monthly consultations with his majesty's cartographers, would decide whether to include it in the Padrón Real, later called the Padrón General.[2][3]: 72, 278 The Pilot Major was eventually given permission to sell copies of the map for his own benefit.[3]: 73, 279
The Pilot Major was also responsible for "examining and licensing all pilots of the Spanish fleet."[1]
Holders of the office include:
Amerigo Vespucci (1454–1512),[2][4] Italian explorer
Juan Díaz de Solís (c. 1470–1516),[5] Portuguese or Spanish navigator and explorer, appointed in 1512 following the death of Vespucci[6]
Sebastian Cabot[3]: 321 [7] (c. 1474–c. 1557), Venetian explorer, Pilot Major of Spain from 5 February 1518 to 25 October 1525, succeeding Díaz de Solís,[5] and again from 1533 to 1547[3]: 73 [8]
In 1519, a new position was created, Cartographer (Cartógrafo), to assume some of the responsibilities of the Pilot Major.[9]