History of Portugal (1834–1910)
Militant Republicans and their allies in the Carbonária were not willing to remain in the shadows of the constitutional monarchy. Between 4–5 October 1910, members of the Carbonária, republican youth, and elements of the army instigated a coup d'état against the already weak constitutional monarchy. The young king and his family, after a few miscues, escaped from the Palace in Mafra to exile in England. On the morning of 5 October 1910, the Republic was declared from the balcony of Lisbon City Hall, ending eight centuries of monarchy in Portugal.
Portugal Day
Although Camões became a symbol for Portugal nationalism, his death coincided with the Portuguese succession crisis of 1580 that eventually resulted in Philip II of Spain claiming the Portuguese throne. Portugal was then ruled by three generations of Spanish kings during the Iberian Union (1580–1640). On 1 December 1640, the country regained its independence once again by expelling the Spanish during the Portuguese Restoration War and making John of Bragança, King John IV of Portugal.