Treaty between Spain and Portugal, concluded at Vitoria, February 19, 1524. Ratification by the Emperor, February 27, 1524.
The attainment of India by the Portuguese incited the Spaniards to discover a strait leading westward to the Spice Islands. This was the purpose of Columbus's fourth voyage ( 1502-1504), and of several other Spanish expeditions, planned or undertaken in the following decade. The King of Portugal kept jealous watch of these enterprises and his protests caused at least one projected expedition of this kind to be postponed.1
In 1518 the Portuguese captain Magellan, who had served in the Far East, deeming himself ungratefully treated by King Emmanuel, transferred his allegiance to King Charles of Spain.2 On the ground that the Spice Islands ( Moluccas) lay on the Spanish side of the line of demarcation, he persuaded Charles to employ him to lead an expedition thither by the western route.3 Despite the King of Spain's assurances that his commanders were charged to respect existing international agreements touching the line of demarcation,4 Portugal strove to frustrate Magellan's negotiations, and, failing in this, to obstruct the execution of his project.5
These attempts failed and in November, 1521, the Spanish expedition, having discovered on the voyage the Ladrones and the Philippine Islands, reached the Moluccas, where the native rulers concluded treaties with the____________________