The First Republic, 1910–192615 min read

The morning Portugal became a republic: 5 October 1910

A day earlier the revolt looked lost. Then a white flag was misread, the city poured into the streets, and from a balcony over the Praça do Município Portugal stopped being a kingdom.

By Lisboeta, checked against 17 sourcesLast checked 12 October 2026
Black-and-white photograph taken along a crowded balcony. A man in a dark suit and bow tie leans over the stone balustrade holding a sheet of paper, other men pressed beside him, high above a street with a few pedestrians and tall buildings opposite.
Inocêncio Camacho reads the names of the Provisional Government from the balcony of Lisbon City Hall after the proclamation of the Republic, 5 October 1910. Photograph by Joshua Benoliel. Joshua Benoliel, Public domain

At a glance

  • On the morning of 5 October 1910 José Relvas, a leader of the Portuguese Republican Party, proclaimed the Republic from the balcony of Lisbon City Hall, ending the monarchy.
  • The uprising began in the early hours of 4 October. Most officers gave it up for lost, but António Machado Santos held the Rotunda, at the top of the Avenida da Liberdade, while rebel cruisers on the Tagus shelled the royal palace.
  • King Manuel II fled to Mafra and on 5 October sailed from Ericeira on the royal yacht Amélia. He never returned to rule.
  • Historians' counts of the dead run from 65 to about 150, with between 308 and 728 wounded, most of them civilians.
  • 5 October is a public holiday. A labour law of 2012 dropped it from 2013 to 2015, and it was restored in 2016.

A balcony over the Praça do Município

By half past eight on the morning of Wednesday 5 October 1910 the shooting in Lisbon had stopped. Soldiers who had fought for the king were firing their rifles into the air, and crowds waving white flags were embracing the men they had been shooting at a few hours before.

At the Paços do Concelho, Lisbon's City Hall, José Relvas stepped onto the balcony with Eusébio Leão and other leaders of the Portuguese Republican Party. Relvas, a Ribatejo landowner, proclaimed the Republic to the square below, and the names of a provisional government were read out. The telegraph carried the news to the rest of the country.

The monarchy had lasted since the beginnings of Portugal in the twelfth century. Only a day earlier, the revolt that ended it had looked like a disaster. Its chief was dead, most of its officers had left their positions, and its political leaders were in hiding.

Twenty years of a monarchy losing its footing

The trouble began in January 1890. On the 11th, Britain sent Portugal an ultimatum to give up its claim, drawn on the “rose-coloured map”, to the land between Angola and Mozambique. The new king, Carlos I, gave way. Public anger fell on the crown, and at the election that March the Republican Party won three seats in Lisbon.

A patriotic march written that year, A Portuguesa, with music by Alfredo Keil and words by Henrique Lopes de Mendonça, was printed in more than 22,000 free copies. When republicans in Porto rose on 31 January 1891, they marched to it. The rising failed.

Money made things worse. The state went into partial bankruptcy in 1891 and 1892. Politics, meanwhile, ran on rotativismo: the Regenerador and Progressista parties took turns in office by agreement, and local bosses delivered the votes. Carlos I appointed and dismissed governments and created batches of peers to give them majorities.

“We have absolute rule in essence, but masked by the costly and corrosive formalism of the parliamentary system, which serves to deceive the unwary.”
Teófilo Braga, Soluções Positivas, quoted by Tiago Reis (translated from Portuguese)

From 1901 the old parties split. João Franco left the Regeneradores to found his own party, and in 1907 and 1908 he ruled as a dictator. On 1 February 1908, in the Terreiro do Paço, gunmen shot dead Carlos I and his heir, Luís Filipe. The king's younger son was acclaimed as Manuel II in May. He reigned for two years.

The republicans grew with each crisis, above all in Lisbon. They won 7 seats in April 1908, two months after the regicide, and 14 at the last election of the monarchy, on 28 August 1910, 11 of them in Lisbon. With a narrow franchise and rigged elections, that was as far as the ballot could take them.

Republican deputies elected at each general election, 1878 to 1910

deputies

05101518781881188718901894Apr 190619081910

Table 1 in Tiago Reis (2021), after Maria Cândida Proença's biography of Manuel II. The table gives only a dash for the elections of 1895, 1897, 1900, 1901, 1904 and 1905, so they are left out here. Highlighted: the elections after the British Ultimatum, after the regicide, and the last before the revolution.

Show the data
 Republican deputies elected
18781
18791
18811
18842
18872
18892
18904
18923
18942
18993
Apr 19061
Aug 19064
19087
191014

So the party prepared a revolution. Its congress of 1909 set up a directorate, a civil committee and a military committee under a retired admiral, Cândido dos Reis. In the navy a conspiracy network recruited sailors, sergeants and junior officers. On the streets the party relied on the Carbonária, a secret society that the historian João Freire calls probably the most decisive instrument of the rising.

3 and 4 October: a revolt that nearly failed

The plot began badly. Around midday on 3 October Miguel Bombarda, a psychiatrist and one of the republican leaders, was shot in his hospital office by a former patient; he died that evening. That evening, while a banquet for the visiting Brazilian marshal Hermes da Fonseca was held at the Belém palace, some fifty conspirators crammed into a flat at 106 Rua da Esperança. They agreed that the warships on the Tagus would fire a 31-shot salvo at one in the morning as the signal.

At about a quarter to one, by the navy's account, Lieutenant Mendes Cabeçadas seized the cruiser Adamastor and fired three shots. The leaders waiting at the São Paulo baths heard only three cannon shots, at about twenty past one by their reckoning.

On the São Rafael the sailors rose without a single officer of their own, led by a gunner, José de Carvalho, and held the ship's officers prisoner. The naval barracks at Alcântara rose too. On land, Machado Santos led civilians to the Infantry 16 barracks at Campo de Ourique, and that regiment and Artillery 1 came out.

Little else went to plan. According to the historian Ricardo Raimundo, most members of the Carbonária had no weapons and stayed away; only about 200 turned out, and the officers and sergeants in the plot succeeded in only two of the city's three regiments. The column marching on the Necessidades Palace ran into the Municipal Guard and turned instead to the Rotunda, the circle at the top of the Avenida da Liberdade.

Believing the revolt had failed, Cândido dos Reis left his sister's house soon after five in the morning. He was found dead at about six in the morning in the Travessa das Freiras, in Arroios. It was called suicide at the time, and doubts remain. As the morning wore on, most of the officers at the Rotunda left, among them Captain Afonso Palla, who had placed the guns.

One stayed. Machado Santos, a second-class naval commissary (an administrative officer) and a leader of the Carbonária, asked the sergeants of Artillery 1 whether they would accept his command. They said they would fight to the end. By midday some 400 men were dug in behind barricades he himself called “platonic”.

“I am determined not to abandon this position, whatever it costs!”
Machado Santos to the sergeants of Artillery 1 at the Rotunda, 4 October 1910, as reported by Jorge d'Abreu (translated from Portuguese)
A group of men, some in caps and soldiers' uniforms, others in civilian suits and bowler hats, stand holding rifles beside a field gun on open ground.
Insurgents with a field gun at the Rotunda in October 1910. Photograph by Joshua Benoliel. Joshua Benoliel, Public domain

In the cafés of the Chiado that morning, the talk was that the revolution had failed. Yet according to Raimundo, the command of the Lisbon military division never seriously attacked, because its officers had no wish to defend a government that did not represent them. The exception was Paiva Couceiro, whose horse battery from Queluz shelled the rebels from near the Penitentiary that afternoon, until headquarters ordered it to stop.

A postcard photograph of a barricade of planks. A woman in a pale blouse stands among men in caps and bowler hats, pointing a pistol forward, while the men around her hold rifles. Red lettering at the top reads Na rotunda da Avenida, A heroina Amelia Santos.
“At the Rotunda of the Avenida, the heroine Amélia Santos”: a postcard of the rebels behind their barricade, October 1910. Amélia, a shop assistant, stayed at the Rotunda until the end. Unknown author, Public domain

Shells on the Necessidades

The navy turned it. Around midday on 4 October, messengers reached the rebel sailors at Alcântara with news that the Rotunda was holding. Their officers ordered the cruisers to bombard the Necessidades Palace, where Manuel II was living and where the troops defending it were massed.

According to the navy's own history, the ships fired more than forty shells at the palace. They hit the cornice of its chapel and the king's bedroom. The servants fled, and those who stayed persuaded Manuel to leave. He crossed the Tapada, the palace grounds, to a car called from a private garage and was driven to the palace-convent at Mafra.

A palace room with a shattered wall and doorway, loose planks and debris on the floor, a torn curtain hanging and an ornate carved frame on the left. Handwritten text at the top reads Lisbon Revolution wrecked palace room.
A wrecked room in the Necessidades Palace after the bombardment of October 1910, in a print from the American Bain News Service. Bain, Public domain

With the king gone, the defence fell into disorder. The cruiser D. Carlos was still flying the blue and white flag of the monarchy. At about half past seven that evening, Abreu writes, a boarding party under Lieutenant Carlos da Maia, who had come from the Alcântara barracks, took it after a gunfight with its officers. The navy's history says the ship went over under Second Lieutenant Silva Araújo. Abreu names him as the one officer on board who was in on the plot, and the only one allowed to stay.

Hour by hour, 3 to 5 October

3 to 5 October 1910
  1. 3 Oct, afternoon

    Miguel Bombarda is shot by a patient at his hospital

  2. 3 Oct, 8 to 10.30 pm

    Last meeting of the conspirators at 106 Rua da Esperança

  3. 4 Oct, c. 00.45 to 1.20 am

    Three shots from the Tagus signal the rising; accounts differ on the time

  4. 4 Oct, small hours

    Sailors seize the São Rafael; the Alcântara barracks rise; Infantry 16 and Artillery 1 march

  5. 4 Oct, 4 am

    Municipal Guard cavalry charge the Rotunda and are driven back

  6. 4 Oct, c. 6 am

    Cândido dos Reis is found dead in Arroios

  7. 4 Oct, morning

    Most officers leave the Rotunda; Machado Santos takes command

  8. 4 Oct, midday

    About 400 men hold the Rotunda

  9. 4 Oct, afternoon

    Cruisers shell the Necessidades; the king leaves for Mafra

  10. 4 Oct, c. 7.30 pm

    A boarding party under Carlos da Maia takes the cruiser D. Carlos

  11. 5 Oct, before 7 am

    The German chargé d'affaires asks for a truce; a white flag sets off celebrations

  12. 5 Oct, 8.45 to 9.45 am

    One-hour armistice agreed at the Rotunda

  13. 5 Oct, 9 to 11 am

    José Relvas proclaims the Republic at City Hall; sources give either hour

  14. 5 Oct, afternoon

    Manuel II sails from Ericeira on the royal yacht Amélia

Proclaimed
5 October 1910, morning, from the balcony of the Paços do Concelho, Lisbon
Proclaimed by
José Relvas, with Eusébio Leão, both leaders of the Republican Party
Fighting
From about 1 am on 4 October to the morning of 5 October, almost all in Lisbon
Rebel strongpoints
The Rotunda, the naval barracks at Alcântara and the cruisers on the Tagus
Head of the new government
Teófilo Braga, a veteran positivist and republican
Last king
Manuel II, who went into exile in England

A white flag, misread

The end came by accident. Shortly before seven on 5 October, the German chargé d'affaires asked General Manuel Rafael Gorjão, commander of the Lisbon military division, for a one-hour truce so that foreigners could reach their ships. Gorjão agreed and sent the diplomat to the Rotunda with a cavalry orderly carrying a white flag.

The crowds took the flag for a surrender. Soldiers left their ranks and mixed with people waving white flags. At a hurried council Paiva Couceiro told Gorjão he no longer had any soldiers, said he was going north, and left with his battery for Queluz. At the Rotunda Machado Santos refused a truce, then granted one from 8.45 to 9.45 on his own terms, and marched down to Rossio at the head of armed civilians to take over the headquarters.

Then came the balcony. Jorge d'Abreu, writing in 1912, and the historian Vítor Neto put the proclamation at about nine; the navy's history and Fernando Rosas put it at about eleven. Either way it was Relvas who spoke, and the veteran positivist Teófilo Braga who would lead the government.

The rest of Portugal learned of it by wire. Fernando Rosas calls the Republic a “profoundly urban” creation of Lisbon, and the journalist João Chagas had predicted as much in a conversation the writer Raul Brandão recorded.

“What do I care about the provinces! What do I care even about Porto! We'll make the Republic afterwards, by telegraph.”
João Chagas, as recalled in Raul Brandão's memoirs (translated from Portuguese)

Telephones were few, and the telegraph was slow to reach some places. Lamego, in the north, took seven days to learn that Manuel II no longer reigned. In Timor, the monarchy lasted in people's minds until the end of October.

Two fishing boats at Ericeira

The king spent the night of 4 October in the convent at Mafra. On the morning of the 5th his mother, Queen Amélia, and his grandmother, Queen Maria Pia, drove over from Sintra. After lunch, breathless messengers arrived from Cascais with the news that the Republic had won, and another with word that the royal yacht Amélia was waiting off Ericeira.

The sea was rough. A courtier, Serrão Franco, promised a large reward, and the crews of two fishing boats agreed to row the family out: the two queens in one, the king in the other. Amélia's luggage was a tin trunk of linen; Manuel's, a box with half a dozen handkerchiefs. Before he left, he gave a letter for the prime minister saying that he was not abdicating, only withdrawing for a time.

A beach under a high rock cliff. A group of people walks to the water's edge towards a rowing boat, other boats lie on the sand, and spectators line the top of the cliff in front of a row of houses.
The royal party embarks from the beach at Ericeira for the yacht Amélia on the afternoon of 5 October 1910, watched from the clifftop. Photograph by J. M. da Silva. J. M. da Silva, Public domain

The yacht sailed round the Berlengas islands and on to Gibraltar. Abreu puts the departure at four in the afternoon; the photograph of the embarkation is dated at three. Manuel II went into exile in England, and Portugal's last king never ruled again.

How many died

Nobody kept a single official count, and the estimates differ by more than double. Most of the victims were civilians. There was fighting along the Avenida da Liberdade, all around the Necessidades and in Pedrouços, as well as on the ships. The naval hospital alone treated about 50 wounded sailors, soldiers, police and civilians.

Estimates of the dead and wounded in the revolution of 3 to 5 October 1910
SourceDeadWoundedNote
Douglas L. Wheeler (1978), cited by João Freire65728Freire: “mostly ordinary people”
Vasco Pulido Valente, O Poder e o Povo, cited by João Freire72308Leaves out murders and accidents
Maria Carrilho (1985), cited by João Freire76347Wounded “many of them serious”
Jorge d'Abreu (1912)About 100Not given“A hundred sacrificed”
Fernando Rosas (2025)100-odd, 150 at most“Many”Interview with Diário de Notícias

Wheeler's História Política de Portugal de 1910 a 1926 gives the first figures. Pulido Valente leaves out the victims of murders and accidents, which accounts for part of the gap. The 2025 estimate is from an interview, not a new count.

Cândido dos Reis, who planned the rising, did not live to see it succeed. A long avenue in Lisbon, the Avenida Almirante Reis, now carries his name.

A new flag, a new anthem, a new currency

The provisional government was not the one the conspirators had planned. Bombarda and Cândido dos Reis were dead, so Teófilo Braga became its president. Afonso Costa, who had played no major part in the revolution, took Justice and Worship; António José de Almeida took the Interior, Bernardino Machado Foreign Affairs and Relvas Finance. The Carbonária was left out, and so was Machado Santos.

It governed by decree, and fast. Its first act, on 8 October, expelled the Jesuits. Decrees of 12 October replaced the religious holidays with civic ones celebrating the new regime. By Christmas, marriage had become a purely civil contract, and divorce was legal.

The Republic's first measures
DateMeasureWhat it did
8 October 1910Expulsion of the JesuitsThe Provisional Government's first decree
12 October 1910Civic holidaysSecularised the public holidays and created the regime's own commemorations
3 November and 25 December 1910Divorce and family lawsAllowed divorce; made civil marriage the only valid kind
29 November 1910Green and red flagDesign approved by the government; confirmed by the Constituent Assembly on 19 June 1911
20 April 1911Law of SeparationSeparated church and state
22 May 1911The escudoReplaced the real as the national currency
19 June 1911A PortuguesaAdopted as the national anthem by the Constituent Assembly
21 August 1911ConstitutionParliamentary republic with a president elected by Congress

The new flag came from a commission named on 15 October that included the painter Columbano Bordalo Pinheiro, the writer Abel Botelho and João Chagas. Its green and red replaced the blue and white of the Braganças, and the argument it caused was, as the Diário de Notícias put it later, almost as heated as the choice of a site for Lisbon's new airport.

The anthem was the march of 1890. A Portuguesa, written in anger at the British Ultimatum and sung by the Porto rebels of 1891, became the national anthem on 19 June 1911, the day the Constituent Assembly first met.

Relvas, at Finance, investigated the illegal advances the monarchy had paid to the royal household and on 22 May 1911 replaced the real with the escudo. The Constitution, approved on 21 August 1911, abolished titles of nobility and made education secular. It did not give the vote to women or to people who could not read, in a country where about 68 per cent of people were illiterate.

Sixteen years of the First Republic

Former monarchists rushed to join the winners, and people called them “adesivos”, the sticky ones. The writer Ramalho Ortigão joked that when the fighters of the Rotunda counted their losses on the morning of 5 October, they found that of the five hundred who had started the revolt, only five thousand were left.

The regime never settled. Between 1910 and 1926 Portugal had 8 presidents and 45 governments and faced 10 armed conspiracies. Rosas argues that it had no social policy and lost the workers who had helped make the revolution, and that entering the First World War, for which the country was not prepared, did it great damage.

Some of the men of October 1910 died by violence. On the night of 19 to 20 October 1921, the Noite Sangrenta, armed men killed the prime minister António Granjo and two heroes of the revolution, Machado Santos and Carlos da Maia. A military coup on 28 May 1926 dissolved parliament; the military dictatorship that followed led to the Estado Novo.

5 October today

5 October, the Implantação da República, is one of the compulsory public holidays in Portugal's Labour Code. For three years it was not. A labour law of June 2012 cut four holidays from 1 January 2013: Corpus Christi, 5 October, 1 November and 1 December.

The same law said the cut must be reviewed within five years. It took less. Lei n.º 8/2016, published on 1 April 2016, restored all four, and 5 October was a holiday again that autumn.

FAQs

Why is 5 October a holiday in Portugal?

It marks the proclamation of the Republic in Lisbon on 5 October 1910, which ended the monarchy. A labour law of 2012 dropped the holiday from 2013 to 2015, and Lei n.º 8/2016 restored it.

Who proclaimed the Portuguese Republic?

José Relvas, a leader of the Portuguese Republican Party, proclaimed it from the balcony of Lisbon City Hall on the morning of 5 October 1910, with Eusébio Leão beside him. Teófilo Braga became president of the provisional government.

How many people died in the revolution of 1910?

There is no single official figure. Historians' estimates run from 65 dead and 728 wounded (Douglas Wheeler), through 72 dead (Vasco Pulido Valente) and 76 (Maria Carrilho), to about 100 to 150 dead (Fernando Rosas). Most victims were civilians in Lisbon.

What happened to King Manuel II?

After the cruisers shelled the Necessidades Palace on 4 October, he went to Mafra. On 5 October he was rowed out from the beach at Ericeira to the royal yacht Amélia, sailed for Gibraltar and settled in exile in England. He left a letter saying he was not abdicating.

Where was the fighting in Lisbon?

Mainly at the Rotunda, now the Praça do Marquês de Pombal, along the Avenida da Liberdade, around the Necessidades Palace and the naval barracks at Alcântara, in Pedrouços, and on the Tagus, where rebel sailors took the cruisers.

On the timeline

Open the timeline

Nearby moments from the first republic (1910–1926).

  1. The Republic proclaimed, 1910

  2. Three days after the proclamation of the Republic, the Justice Minister Afonso Costa revives Pombal's laws expelling the Jesuits and the 1834 law abolishing the religious orders. All Jesuits, whatever their nationality, are ordered out of the country, their property passes to the state, and the goods of other religious houses are inventoried and sealed.

  3. The provisional government decrees a new press law, replacing João Franco's repressive press laws of 1907 and restoring freedom of the press, though restrictive legislation would return within a few years.

  4. Less than a month after the proclamation of the Republic, a decree of the Provisional Government legalises divorce in Portugal, including by mutual consent — one of the first secularising reforms driven by the Minister of Justice, Afonso Costa.

Coming up in history

All long reads

17 sources

Archives, scholarship and reporting this article was checked against.

  1. 1Lisbon, 1912 (Project Gutenberg edition)A Revolução Portugueza: O 5 de Outubro (Lisboa 1910), by Jorge d'AbreuLisbon, 1912 (Project Gutenberg edition)
  2. 2Revista de História das Ideias, vol. 34 (2016), Universidade de CoimbraJosé Relvas: um político republicano, by Vítor NetoRevista de História das Ideias, vol. 34 (2016), Universidade de Coimbra
  3. 3Ler História, 59 (2010)A Marinha e a República, by João FreireLer História, 59 (2010)
  4. 4Marinha Portuguesa, Cultura MarinhaEfeméride: Implantação da República, 5 de outubro de 1910Marinha Portuguesa, Cultura Marinha
  5. 55 de Outubro. A “aliança da carbonária com o republicanismo radical” que derrubou a monarquia, by Rui Miguel GodinhoDiário de Notícias, 5 October 2025
  6. 6Omni Tempore: Atas dos Encontros da Primavera 2020, Faculdade de Letras da Universidade do Porto (2021)Eleições legislativas no Porto (1895 e agosto de 1906), by Tiago ReisOmni Tempore: Atas dos Encontros da Primavera 2020, Faculdade de Letras da Universidade do Porto (2021)
  7. 7Assembleia da RepúblicaA 1.ª República (1910-1926)Assembleia da República
  8. 8Procuradoria-Geral Distrital de Lisboa, legislation databaseLei n.º 8/2016, de 1 de abril (restoring national holidays)Procuradoria-Geral Distrital de Lisboa, legislation database
  9. 9Peripécias do fundador de PortugalDiário de Notícias
  10. 10Arquivo Nacional Torre do TomboGuardar memórias, abrir caminhosArquivo Nacional Torre do Tombo
  11. 11“A República só triunfou devido à desorganização, desmoralização e falta de comprometimento dos monárquicos”, by Leonídio Paulo FerreiraDiário de Notícias, 4 October 2025
  12. 12República: “Adesivos”, “thalassas” e heróis esquecidosDiário de Notícias (archive section), 4 October 2023
  13. 13Assembleia da RepúblicaA Monarquia Constitucional (1820-1910)Assembleia da República
  14. 14Revista Militar, no. 2608 (May 2019)O relato dos enfermeiros do Hospital de Marinha: fonte inédita para o estudo da adesão e ação dos militares da Armada na revolução republicana de 5 de Outubro de 1910, by Diogo Campos RodriguesRevista Militar, no. 2608 (May 2019)
  15. 15Centro de Estudos de História Religiosa, Universidade Católica PortuguesaPara lá do anticlericalismo: a separação das igrejas do Estado como embate cultural (Sérgio Ribeiro Pinto)Centro de Estudos de História Religiosa, Universidade Católica Portuguesa
  16. 16Assembleia da RepúblicaNoite Sangrenta (outubro 1921)Assembleia da República
  17. 17Procuradoria-Geral Distrital de Lisboa, legislation databaseLei n.º 23/2012, de 25 de junho (third amendment to the Labour Code)Procuradoria-Geral Distrital de Lisboa, legislation database

Image credits

  • Inocêncio Camacho reads the names of the Provisional Government from the balcony of Lisbon City Hall after the proclamation of the Republic, 5 October 1910. Photograph by Joshua Benoliel. Joshua Benoliel, Public domain, via Wikimedia Commons.
  • Insurgents with a field gun at the Rotunda in October 1910. Photograph by Joshua Benoliel. Joshua Benoliel, Public domain, via Wikimedia Commons.
  • “At the Rotunda of the Avenida, the heroine Amélia Santos”: a postcard of the rebels behind their barricade, October 1910. Amélia, a shop assistant, stayed at the Rotunda until the end. Unknown author, Public domain, via Wikimedia Commons.
  • A wrecked room in the Necessidades Palace after the bombardment of October 1910, in a print from the American Bain News Service. Bain, Public domain, via Wikimedia Commons.
  • The royal party embarks from the beach at Ericeira for the yacht Amélia on the afternoon of 5 October 1910, watched from the clifftop. Photograph by J. M. da Silva. J. M. da Silva, Public domain, via Wikimedia Commons.