John VI of Portugal flees Lisbon from advancing Napoleonic forces during the Peninsular War, transferring the Portuguese court to Brazil.

Dom John VI, known as "the Clement", was King of the United Kingdom of Portugal, Brazil and the Algarves from 1816 to 1825, and after the recognition of Brazil's independence, titular Emperor of Brazil and King of Portugal until his death in 1826.

The Peninsular War (1808–1814) was fought in the Iberian Peninsula by Portugal, Spain and the United Kingdom against the invading and occupying forces of the First French Empire during the Napoleonic Wars. In Spain, it is considered to overlap with the Spanish War of Independence.

The Portuguese royal court transferred from Lisbon to the Portuguese colony of Brazil in a strategic retreat of Queen Maria I of Portugal, prince regent John, the Braganza royal family, its court, and senior officials, totaling nearly 10,000 people, on 27 November 1807. The embarkment took place on 27 November, but due to weather conditions, the ships were only able to depart on 29 November. The Braganza royal family departed for Brazil just days before Napoleonic forces invaded Portugal on 1 December 1807. The Portuguese crown remained in Brazil from 1808 until the Liberal Revolution of 1820 led to the return of John VI of Portugal on 26 April 1821.

November 29 is the 333rd day of the year in the Gregorian calendar; 32 days remain until the end of the year.