Auguste Charles Eugène Napoléon de Beauharnais, Duke of Leuchtenberg (9 December 1810 – 28 March 1835) was the first
prince consort
A prince consort is the husband of a monarch who is not a monarch in his own right. In recognition of his status, a prince consort may be given a formal title, such as ''prince''. Most monarchies do not allow the husband of a queen regnant to be ...
of
Maria II of Portugal
Dona Maria II (Maria da Glória Joana Carlota Leopoldina da Cruz Francisca Xavier de Paula Isidora Micaela Gabriela Rafaela Gonzaga de Habsburgo-Lorena e Bragança; 4 April 1819 – 15 November 1853) also known as "the Educator" () or as ...
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
, Lombardy, Auguste was the eldest son of
Eugène de Beauharnais
Eugène Rose de Beauharnais (; 3 September 1781 – 21 February 1824) was a French statesman and military officer who served in the French Revolutionary and Napoleonic Wars. Through the second marriage of his mother, Joséphine de Beauharnais, ...
,
Napoleon I
Napoleon Bonaparte (born Napoleone di Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French general and statesman who rose to prominence during the French Revolution and led Military career ...
Queen consort
A queen consort is the wife of a reigning king, and usually shares her spouse's social Imperial, royal and noble ranks, rank and status. She holds the feminine equivalent of the king's monarchical titles and may be crowned and anointed, but hi ...
of
Oscar I of Sweden
Oscar I (born Joseph François Oscar Bernadotte; 4 July 1799 – 8 July 1859) was King of Sweden and List of Norwegian monarchs, Norway from 8 March 1844 until his death. He was the second monarch of the House of Bernadotte.
The only child of Ki ...
, and
Amélie
''Amélie'' (, , ) is a 2001 French-language romantic comedy film directed by Jean-Pierre Jeunet. Written by Jeunet with Guillaume Laurant, the film is a whimsical depiction of contemporary Parisian life, set in Montmartre. It tells the story ...
,
Empress consort
A queen consort is the wife of a reigning king, and usually shares her spouse's social rank and status. She holds the feminine equivalent of the king's monarchical titles and may be crowned and anointed, but historically she does not formally ...
of his future father-in-law
Pedro I of Brazil
''Don (honorific), Dom'' Pedro I (12 October 1798 – 24 September 1834), known in Brazil and in Portugal as "the Liberator" () or "the Soldier King" () in Portugal, was the founder and List of monarchs of Brazil, first ruler of the Empire of ...
Grand Duchess Maria Nikolaevna of Russia
Grand Duchess Maria Nikolaevna of Russia (Maria Nikolaevna Romanova; Russian: Великая Княжна Мария Николаевна, 17 July 1918) was the third daughter of Tsar Nicholas II of Russia and Tsarina Alexandra Feodorovna (Ali ...
, eldest daughter of
Tsar Nicholas I
Nicholas I, group=pron (Russian language, Russian: Николай I Павлович; – ) was Emperor of Russia, List of rulers of Partitioned Poland#Kings of the Kingdom of Poland, King of Congress Poland, and Grand Duke of Finland from 18 ...
.
Duke of Leuchtenberg
His maternal grandfather, King Maximilian I of Bavaria, had given Eugène the title "Duke of Leuchtenberg" on 14 November 1817, after the loss in 1815 of his Napoleonic titles and the associated expectancies of the
Kingdom of Italy
The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
and the
Grand Duchy of Frankfurt
The Grand Duchy of Frankfurt was a German satellite state of Napoleonic creation. It came into existence in 1810 through the combination of the former territories of the Archbishopric of Mainz along with the Free City of Frankfurt itself.
Histo ...
. Despite the promise of an independent principality inserted into the final treaty, the
Congress of Vienna
The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
adjourned without creating a state for Eugène, so Auguste and his siblings had no inheritance. To the empty Leuchtenberg ducal title had been added the estate of
Eichstätt
Eichstätt () is a town in the federal state of Bavaria, Germany, and capital of the district of Eichstätt. It is located on the Altmühl river and has a population of around 13,000. Eichstätt is also the seat of the Roman Catholic Dioce ...
in
dowry
A dowry is a payment such as land, property, money, livestock, or a commercial asset that is paid by the bride's (woman's) family to the groom (man) or his family at the time of marriage.
Dowry contrasts with the related concepts of bride price ...
, made a nominal principality, also by King Maximilian. Eugène's eldest son Auguste was heir to this modest property, which he inherited when Eugène died on 21 February 1824.
On 4 February 1831 Leuchtenberg was one of three candidates for the throne of the newly independent
Belgium
Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
, his Napoleonic connections allaying the concerns of some of the Great Powers worried that the breakaway Roman Catholic realm might otherwise ally itself too closely with the likewise Catholic and revolutionary "bourgeois monarchy" of
Orléans
Orléans (,"Orleans" (US) and Belgian National Congress, Auguste came in second after the younger son of the
King of the French
The precise style of French sovereigns varied over the years. Currently, there is no French sovereign; three distinct traditions (the Legitimist, the Orleanist, and the Bonapartist) exist, each claiming different forms of title.
The three style ...
,
Prince Louis, Duke of Nemours
Prince Louis of Orléans, Duke of Nemours (Louis Charles Philippe Raphaël d'Orléans; 25 October 1814 – 26 June 1896) was the second son of King Louis-Philippe I of France, and his wife Maria Amalia of Naples and Sicily.
Life
Childho ...
, though ahead of the
Habsburg
The House of Habsburg (; ), also known as the House of Austria, was one of the most powerful dynasties in the history of Europe and Western civilization. They were best known for their inbreeding and for ruling vast realms throughout Europe d ...
candidate,
Archduke Charles, Duke of Teschen
Archduke Charles Louis John Joseph Lawrence of Austria, Duke of Teschen (; 5 September 177130 April 1847) was an Austrian field marshal, the third son of Emperor Leopold II and his wife, Maria Luisa of Spain. He was also the younger brother of ...
. In the event, none of these men attained the Belgian throne, which went to Britain's candidate, Prince Leopold of Saxe-Coburg.
He escorted his sister
Amélie
''Amélie'' (, , ) is a 2001 French-language romantic comedy film directed by Jean-Pierre Jeunet. Written by Jeunet with Guillaume Laurant, the film is a whimsical depiction of contemporary Parisian life, set in Montmartre. It tells the story ...
to Brazil for her marriage to Emperor Pedro I and was created by his new brother-in-law, Duke of Santa Cruz on 5 November 1829.
Prince consort of Portugal
On 26 May 1834, young Queen
Maria II of Portugal
Dona Maria II (Maria da Glória Joana Carlota Leopoldina da Cruz Francisca Xavier de Paula Isidora Micaela Gabriela Rafaela Gonzaga de Habsburgo-Lorena e Bragança; 4 April 1819 – 15 November 1853) also known as "the Educator" () or as ...
was restored to the throne of Portugal, gifted to her by the abdication – and subsequent conquest in war – of her father, Emperor Pedro I of Brazil, who had to do battle against the usurpation of his rebellious younger brother, Dom Miguel.
Maria's childhood betrothal to Dom Miguel was broken so that a more pliant husband could be found to beget a new Portuguese dynasty, one whose loyalty might prove more trustworthy if he had no other prospects, such that he would be entirely beholden for his dynastic fortune to Portugal's constitutional regime. The Queen obligingly settled on Auguste de Beauharnais who, once again, proved unthreatening to the Great Powers because of his lack of membership in an already reigning dynasty and lack of conflicting foreign obligations or ambitions. He was also the eldest brother of Maria's stepmother Empress Amélie.
Auguste and Maria II were married by proxy in
Munich
Munich is the capital and most populous city of Bavaria, Germany. As of 30 November 2024, its population was 1,604,384, making it the third-largest city in Germany after Berlin and Hamburg. Munich is the largest city in Germany that is no ...
on 1 December 1834. The groom was almost twenty-four years old and the bride fifteen years old. On his wedding day his bride conferred upon him the Portuguese style of "His Royal Highness The Prince Consort of Portugal".
He arrived in Portugal shortly thereafter, and the couple were wed in person in Lisbon on 26 January 1835. However Auguste fell ill and died only two months later. The suddenness of this upon his arrival led to rumors that he had been poisoned, however no names of any suspects were ever produced.
Childless at the time of his death, Auguste left as heir in Bavaria his younger brother, who became the 3rd Duke of Leuchtenberg, and briefly Auguste's successor in ownership of Eichstätt which, however, he returned to the Bavarian king in 1855 upon deciding to make his home in Russia, the realm of his own father-in-law.
A year later Maria II married Ferdinand of Saxe-Coburg-Gotha, a nephew of the Coburg prince who had beat out her first husband in competition for the constitutional crown of Belgium.
Because Auguste died before fathering an heir to the Portuguese throne, he never became Maria's co-monarch, which Maria's next husband did in 1837, allowing Maria to continue the Braganza Dynasty.