Formally recognized Brazilian independence, ending the Brazilian War of Independence and establishing diplomatic relations between Portugal and Brazil.
Key Facts
- Date signed
- August 29, 1825
- Ratified by Brazil
- August 24, 1825
- Ratified by Portugal
- November 15, 1825
- Entered into force
- November 15, 1825
- Proclaimed in Brazil
- April 10, 1826
By the Numbers
Location
Cause → Event → Consequence
Following Brazil's declaration of independence in 1822, the Brazilian War of Independence was fought between forces loyal to the Portuguese crown and those supporting a sovereign Brazilian state. By the mid-1820s, Portuguese military resistance had effectively collapsed, creating pressure on Portugal to negotiate a formal settlement recognizing Brazilian sovereignty.
On August 29, 1825, the Kingdom of Portugal and the Empire of Brazil signed the Treaty of Rio de Janeiro. The agreement formally acknowledged Brazil as an independent nation, ending years of conflict stemming from Brazil's 1822 declaration of independence. Ratifications were exchanged in Lisbon on November 15, 1825, when the treaty entered into force.
Portugal's recognition of Brazilian independence ended the Brazilian War of Independence and established a formal diplomatic relationship between the two nations. The treaty gave Brazil international legitimacy as a sovereign state and set a precedent for the dissolution of the Portuguese colonial empire in the Americas.
Political Outcome
Portugal formally recognized Brazil as an independent nation, ending the Brazilian War of Independence.
Brazil was a contested former Portuguese colony engaged in a war of independence
Brazil was internationally recognized as a sovereign independent empire