In a letter dated 4 March 1871 the Brazilian ambassador to Vienna, Francisco Adolfo de Varnhagen (future Viscount of Porto Seguro), said to the Emperor: If the august grandchildren of HIM, Sr, will one day be princes of the Empire, all Brazilians will desire that they be brought up and educated in Brazil, whereas nothing will lose any of them with such education, if luck will call it to another destination in Europe, and it is less likely that it seems that the succession may fall to their kin, can not conceive in this respect anything impossible if anyone remembers that (in the history of Portugal itself) to reach To compel the throne to the fortunate Dom Manuel, he had to take charge of taking before him, as I recall, some kin who had first right to the throne of Dom João II.

[3]In his first trip to Europe, still in 1871, Emperor Pedro II decided to bring his grandchildren to Brazil, to create them as eventual heirs to the throne.

[7] On 15 November 1889 the prince was in the East, on board Almirante Barroso (who was on his first circumnavigation trip), when a coup d'état ended the monarchist regime in Brazil.

[8] Telegrams of Admiral Wandenkolk - now Minister of the Navy of the provisional government - instructed the commander of the cruiser to replace the imperial insignia of the flags and to induce Augusto to resign.

[10] Having conducted the entrance examinations, Prince Augusto was admitted to the Austrian naval reserve without prejudice to his status as a Brazilian citizen, as he explained in a letter dated 6 May 1893 to Baron of Estrela, his attorney in Brazil: As I wrote to Antonio, I decided to enter the service of Austria, since the Emperor welcomed me as a Brazilian prince, without my having to lose my Brazilian rights...In the service of the Austrian Navy (where he obtained the patent of Kapitän zur See, equivalent to sea-captain), Augusto had the opportunity to visit other countries, where he continued to be received with the deference reserved for members of ruling houses.

[10] With the aggravation of his brother's psychiatric problems, the prince came to be contemplated by the Brazilian monarchists to assume the throne of Brazil during the frustrated plans of restoration of the regime.

His bride was the fourth child and second daughter of Archduke Karl Salvator of Austria, Prince of Tuscany, and his wife Princess Maria Immaculata of Bourbon-Two Sicilies.

[9] The ceremony was officiated by Anton Josef Gruscha, cardinal-archbishop of Vienna, and was attended by Emperor Franz Joseph I, Empress Elisabeth (widely known as ''Sissi) and other princes and sovereigns.

[citation needed] He was preparing to return to the country with the whole family for the celebrations of the centenary of the Independence of Brazil in 1922, but fell seriously ill and could not make the dream trip.