Transfer of the Portuguese court to Brazil

The Portuguese royal court transferred from Lisbon to the Portuguese colony of Brazil in a strategic retreat of Queen Maria I, Prince Regent John (the future King John VI), 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.

Source: Wikipedia — Transfer of the Portuguese court to Brazil (CC BY-SA 4.0)