Treaty of El Pardo (1778)

Quick Facts: Who was Treaty of El Pardo (1778)?

Subject:

Treaty of El Pardo (1778)

Known for:

1778 treaty ending border disputes between Spain and Portugal over the Río de la Plata.

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2Day Chrono-Wiki & Primary Historical Archives

Origins & Early Life

The Treaty of El Pardo signed on 11 March 1778 sought to end conflict between Spain and Portugal in the Río de la Plata region, along the modern boundary between Argentina and Uruguay. It confirmed Spanish ownership of Colonia del Sacramento, now in Uruguay, while Portugal ceded possession of strategically important territories in Africa, now the modern state of Equatorial Guinea. In return, Spain withdrew from lands to the north, most of which are in the southern Brazilian state of Rio Grande do Sul.

Career & Major Achievements

For nearly 300 years, differing interpretations of the Treaty of Tordesillas led to border disputes between Spain and Portugal over the Río de la Plata region. Portuguese encroachments in this area allowed their merchants to evade commercial restrictions imposed by Spain on the importation of goods into Spanish South America.

Enduring Legacy & Impact

This culminated in 1680 when Portugal established the trading post of Colonia del Sacramento, just across the river from Buenos Aires which became a major centre for smuggled goods. The two countries attempted to settle this dispute by the 1750 Treaty of Madrid but it was annulled by Charles III of Spain in 1761.

Chronological Milestones & Life Events

1. 1680: 1680 Milestone — This culminated in 1680 when Portugal established the trading post of Colonia del Sacramento, just across the river from Buenos Aires which became a major centre for smuggled goods.
2. 1750: 1750 Milestone — The two countries attempted to settle this dispute by the 1750 Treaty of Madrid but it was annulled by Charles III of Spain in 1761.
3. 1778: 1778 Milestone — The Treaty of El Pardo signed on 11 March 1778 sought to end conflict between Spain and Portugal in the Río de la Plata region, along the modern boundary between Argentina and Uruguay.

Historical Fact-Check Quiz: Treaty of El Pardo (1778)

True or False: “True or false: The Treaty of El Pardo confirmed Spanish ownership of Colonia del Sacramento, which is located in modern-day Uruguay.”

Answer (TRUE ⭕): The treaty explicitly confirmed Spanish ownership of Colonia del Sacramento, a key territorial gain for Spain in the Río de la Plata region.

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