Dom Pedro I, the first monarch of the Empire of Brazil, was born in Lisbon in 1798 as the fourth child of King Dom João VI and Queen Carlota Joaquina. When French troops invaded Portugal, the royal family fled to Brazil in 1808. Dom Pedro I became the prince regent of Brazil and faced challenges, including threats from revolutionaries and insubordinate Portuguese troops. With the Liberal Revolution of Porto in 1820, Dom João VI returned to Portugal in 1821, leaving Dom Pedro as the regent of Brazil. Faced with Portugal’s attempt to revoke Brazil’s political autonomy, Dom Pedro I proclaimed Brazil’s independence on September 7, 1822. He died in Lisbon in 1834.