 CHAR: Blackthorne says to Toranaga that Portugal and Spain had  shared the world between them through the "Treaty of Zaragoza". In  fact that division was made by the "Treaty of Tordesilhas" (1494),  signed by King João II of Portugal and King Fernando and Queen  Isabel of Spain. The "Treaty of Zaragoza" was signed by King John  III of Portugal and Emperor Carlos V in 1529 and its only aim was to  clarify the question about the control over the Maluki Islands.