The Dukes of Orléans and Montpensier were siblings, both sons of Louis-Philippe I, King of the French, and Maria Amalia of the Two Sicilies.

However her husband became known for his extramarital affairs while the popularity of the Portuguese monarchy started to wane in the face of a bankrupt economy, industrial disturbances, socialist and republican antagonism and press criticism.

While crossing the square and turning to the street, several shots were fired from the crowd by at least two men (Alfredo Luís da Costa and Manuel Buiça), among others.

The King died immediately, his heir Prince Dom Luís was mortally wounded and Infante Dom Manuel was hit in the arm, yet Queen Amélie was surprisingly unharmed after trying to defend her youngest son, the new king Manuel II, with the flower bouquet she kept in her hand.

About twenty minutes later, Prince Luis Filipe died and the next day Manuel was acclaimed King of Portugal, the last of the Braganza dynasty.

Manuel II of Portugal was deposed by a military coup, later known as the 5 October 1910 revolution, which resulted in the establishment of the Portuguese First Republic.

In 1949, Amélia left her Portuguese possessions to her godson, Duarte Pio, Duke of Braganza, at Prime Minister António de Oliveira Salazar's request.