Treaty of Lisbon

The Treaty of Lisbon, signed in 1668, formally recognized Portugal's independence from Spain, ending the Iberian Union that began in 1580. This treaty was a crucial step in re-establishing Portugal as a sovereign nation after years of Spanish rule. The period of union saw Portugal's autonomy gradually eroded, with Spanish kings neglecting promises to uphold Portuguese administration and rights. Portuguese resentment grew due to the appointment of Spaniards to Portuguese offices, the economic strain of Spain's foreign wars, and increased taxation. The eventual restoration of Portuguese independence in 1640 was solidified by this treaty, marking a significant moment in Portuguese history.1234