| 1093 | County of Portugal | Leaders |
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| 27 Jul 1139 | Kingdom of Portugal (from 1253 sometimes Kingdom of Portugal and of the Algarves) | Leaders |
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| 1 Feb 1808 - 30 Aug 1808 | ruler and dynasty deposed in Portugal (but not in Brazil, etc.), and state governed in the name of France¹ | Leaders |
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| 16 Dec 1815 | United Kingdom of Portugal, and of Brazil, and Algarves | Leaders |
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| 26 Feb 1821 | United Kingdom of Portugal, Brazil, and Algarve | Leaders |
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| 2 Jun 1823 | United Kingdom of Portugal, and of Brazil, and Algarves | Leaders |
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| 13 May 1825 | Kingdom of Portugal (separated de jure from Brazil) | Leaders |
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| 5 Oct 1910 | Portuguese Republic | Leaders |
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| 12 Sep 1683 - 9 Dec 1706 | Pedro II | continues to be officially styled Bragança) |
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| 9 Dec 1706 - 31 Jul 1750 | João V | continues to be officially styled Bragança) |
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| 31 Jul 1750 - 24 Feb 1777 | José I | continues to be officially styled Bragança) |
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| 24 Feb 1777 - 20 Mar 1816 | Maria I (f) | continues to be officially styled Bragança) |
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| 20 Mar 1816 - 10 Mar 1826 | João VI "o Clemente" | continues to be officially styled Bragança) |
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| 6 Mar 1826 - 26 Feb 1828 | Isabel Maria (f) | continues to be officially styled Bragança) |
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| 10 Mar 1826 - 3 Mar 1828 | Pedro IV and 15 Mar 1830 - 20 Sep 1834) | continues to be officially styled Bragança) |
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| 3 Mar 1828 - 11 Jul 1828 | Maria II da Glória (f) (1st time) | continues to be officially styled Bragança) |
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| 11 Jul 1828 - 26 May 1834 | Miguel I and for Maria II 3-11 Jul 1828) | continues to be officially styled Bragança) |
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| 26 May 1834 - 15 Nov 1853 | Maria II da Glória (f) (2nd time) 15 Mar 1830) | continues to be officially styled Bragança) |
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| 15 Nov 1853 - 11 Nov 1861 | Pedro V | continues to be officially styled Bragança) |
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| 19 Dec 1853 - 16 Sep 1855 | Fernando II | continues to be officially styled Bragança) |
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| 11 Nov 1861 - 19 Oct 1889 | Luís I "o Popular" | continues to be officially styled Bragança) |
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| 19 Oct 1889 - 1 Feb 1908³ | Carlos I | continues to be officially styled Bragança) |
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| 1 Feb 1908 - 5 Oct 1910 | Manuel II | continues to be officially styled Bragança) |
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| 5 Oct 1910 - 24 Aug 1911 | Joaquim Teófilo Fernandes Braga | Presidents |
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| 24 Aug 1911 - 29 May 1915 | Manuel José de Arriaga Brum da Silveira e Peyrelongue (b. 1840 - d. 1917) | Presidents |
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| 29 May 1915 - 5 Oct 1915 | Joaquim Teófilo Fernandes Braga | Presidents |
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| 5 Oct 1915 - 12 Dec 1917 | Bernardino Luís Machado Guimarães | Presidents |
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| 12 Dec 1917 - 14 Dec 1918 | Sidónio Bernardino Cardoso da Silva Pais (b. 1872 - d. 1918) president 27 Dec 1917 - 9 May 1918) | Presidents |
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| 14 Dec 1918 - 16 Dec 1918 | Council of Ministers - João do Canto e Castro Silva Antunes (b. 1862 - d. 1934) - António Bernardino de Sousa Ferreira - António Caetano de Abreu Freire Egas Moniz (b. 1874 - d. 1955) - Álvaro César de Mendonça (b. 1875 - d. 1959) - Jorge Couceiro da Costa (b. 1858 - d. 1937) - João Tamagnini de Sousa Barbosa (b. 1883 - d. 1948) - Alexandre José Botelho de Vasconcelos e Sá (b. 1872 - d. 1929) - João Alberto Pereira de Azevedo Neves (b. 1877 - d. 1955) - José Alfredo Mendes de Magalhães (b. 1870 - d. 1957) - Eduardo Fernandes de Oliveira (b. 1882 - d. 1943) - Henrique Forbes de Bessa - José João Pinto da Cruz Azevedo (b. 1888 - d. 19...) | Presidents |
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| 16 Dec 1918 - 5 Oct 1919 | João do Canto e Castro Silva Antunes (s.a.) | Presidents |
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| 5 Oct 1919 - 5 Oct 1923 | António José de Almeida | Presidents |
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| 5 Oct 1923 - 11 Dec 1925 | Manuel Teixeira Gomes | Presidents |
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| 11 Dec 1925 - 2 Jun 1926 | Bernardino Luís Machado Guimarães | Presidents |
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| 2 Jun 1926 - 19 Jun 1926 | José Mendes Cabeçadas Júnior | Presidents |
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| 19 Jun 1926 - 9 Jul 1926 | Manuel de Oliveira Gomes da Costa | Presidents |
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| 9 Jul 1926 - 18 Apr 1951 | António Óscar de Fragoso Carmona | Presidents |
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| 18 Apr 1951 - 9 Aug 1951 | António de Oliveira Salazar | Presidents |
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| 9 Aug 1951 - 9 Aug 1958 | Francisco Higino Craveiro Lopes | Presidents |
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| 9 Aug 1958 - 25 Apr 1974 | Américo de Deus Rodrigues Tomás | Presidents |
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| 25 Apr 1974 - 30 Sep 1974 | António de Spínola | Presidents |
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| 30 Sep 1974 - 14 Jul 1976 | Francisco da Costa Gomes | Presidents |
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| 14 Jul 1976 - 9 Mar 1986 | António dos Santos Ramalho Eanes | Presidents |
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| 9 Mar 1986 - 9 Mar 1996 | Mário Soares | Presidents |
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| 9 Mar 1996 - 9 Mar 2006 | Jorge Sampaio | Presidents |
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| 9 Mar 2006 - | Aníbal Cavaco Silva | Presidents |
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| 24 Sep 1834 - 27 May 1835 | Pedro de Sousa Holstein, marquês e conde de Palmela (1st time) (b. 1781 - d. 1850) | Prime ministers |
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| 27 May 1835 - 18 Nov 1835 | João Carlos Gregório Domingues Vicente Francisco de Saldanha Oliveira e Daun, marquês e conde de Saldanha (1st time) (b. 1790 - d. 1876) | Prime ministers |
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| 18 Nov 1835 - 20 Apr 1836 | José Jorge Loureiro | Prime ministers |
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| 20 Apr 1836 - 10 Sep 1836 | António José de Sousa Manoel de Menezes Severim de Noronha, duque de Terceira, marquês e conde de Vila Flor (1st time) (b. 1792 - d. 1860) | Prime ministers |
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| 10 Sep 1836 - 4 Nov 1836 | José Manuel Inácio da Cunha Faro Meneses Portugal da Gama Carneiro e Sousa, conde de Lumiares (b. 1788 - d. 1849) | Prime ministers |
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| 4 Nov 1836 - 5 Nov 1836 | José Bernardino de Portugal e Castro, marquês de Valença, conde de Vimioso (b. 1780 - d. 1840) | Prime ministers |
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| 5 Nov 1836 - 2 Jun 1837 | Bernardo de Sá Nogueira de Figueiredo, visconde e barão de Sá da Bandeira (1st time) (b. 1795 - d. 1876) | Prime ministers |
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| 2 Jun 1837 - 10 Aug 1837 | António Dias de Oliveira | Prime ministers |
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| 10 Aug 1837 - 18 Apr 1839 | Bernardo de Sá Nogueira de Figueiredo, visconde e barão de Sá da Bandeira (2nd time) (s.a.) | Prime ministers |
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| 18 Apr 1839 - 26 Sep 1839 | Rodrigo Pinto Pizarro Pimentel de Almeida Carvalhais, barão da Ribeira de Sabrosa (b. 1788 - d. 1841) | Prime ministers |
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| 26 Sep 1839 - 9 Jul 1841 | José Lúcio Travassos Valdez, conde e barão de Bonfim (b. 1787 - d. 1862) | Prime ministers |
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| 9 Jul 1841 - 7 Feb 1842 | Joaquim António de Aguiar | Prime ministers |
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| 7 Feb 1842 - 9 Feb 1842 | Pedro de Sousa Holstein, duque, marquês e conde de Palmela | Prime ministers |
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| 9 Feb 1842 - 20 May 1846 | António José de Sousa Manoel de Menezes Severim de Noronha, duque de Terceira, marquês e conde de Vila Flor (2nd time) (s.a.) | Prime ministers |
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| 20 May 1846 - 6 Oct 1846 | Pedro de Sousa Holstein, duque, marquês e conde de Palmela | Prime ministers |
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| 6 Oct 1846 - 18 Jun 1849 | João Carlos Gregório Domingues Vicente Francisco de Saldanha Oliveira e Daun, duque (from 4 Nov 1847), marquês e conde de Saldanha | Prime ministers |
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| 18 Jun 1849 - 26 Apr 1851 | António Bernardo da Costa Cabral, conde de Tomar (b. 1803 - d. 1889) | Prime ministers |
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| 26 Apr 1851 - 1 May 1851 | António José de Sousa Manoel de Menezes Severim de Noronha, duque de Terceira, marquês e conde de Vila Flor (3rd time) (s.a.) | Prime ministers |
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| 1 May 1851 - 6 Jun 1856 | João Carlos Gregório Domingues Vicente Francisco de Saldanha Oliveira e Daun, duque, marquês e conde de Saldanha (3rd time) (s.a.) | Prime ministers |
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| 6 Jun 1856 - 16 Mar 1859 | Nuno José Severo de Mendoça Rolim de Moura Barreto, marquês de Loulé, conde de Vale de Reis (1st time) (b. 1804 - d. 1875) | Prime ministers |
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| 16 Mar 1859 - 1 May 1860 | António José de Sousa Manoel de Menezes Severim de Noronha, duque de Terceira, marquês e conde de Vila Flor (4th time) (s.a.) | Prime ministers |
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| 1 May 1860 - 4 Jul 1860 | Joaquim António de Aguiar | Prime ministers |
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| 4 Jul 1860 - 17 Apr 1865 | Nuno José Severo de Mendoça Rolim de Moura Barreto, duque (from 3 Oct 1862) e marquês de Loulé, conde de Vale de Reis (2nd time) (s.a.) | Prime ministers |
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| 17 Apr 1865 - 4 Sep 1865 | Bernardo de Sá Nogueira de Figueiredo, visconde e barão de Sá da Bandeira (3rd time) (s.a.) | Prime ministers |
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| 4 Sep 1865 - 4 Jan 1868 | Joaquim António de Aguiar | Prime ministers |
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| 4 Jan 1868 - 22 Jul 1868 | António José de Ávila, conde de Ávila (1st time) (b. 1806 - d. 1881) | Prime ministers |
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| 22 Jul 1868 - 11 Aug 1869 | Bernardo de Sá Nogueira de Figueiredo, visconde e barão de Sá da Bandeira (4th time) (s.a.) | Prime ministers |
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| 11 Aug 1869 - 19 May 1870 | Nuno José Severo de Mendoça Rolim de Moura Barreto, duque e marquês de Loulé, conde de Vale de Reis | Prime ministers |
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| 19 May 1870 - 29 Aug 1870 | João Carlos Gregório Domingues Vicente Francisco de Saldanha Oliveira e Daun, duque, marquês e conde de Saldanha (4th time) (s.a.) | Prime ministers |
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| 30 Aug 1870 - 29 Oct 1870 | Bernardo de Sá Nogueira de Figueiredo, visconde e barão de Sá da Bandeira (5th time) (s.a.) | Prime ministers |
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| 29 Oct 1870 - 13 Sep 1871 | António José de Ávila, marquês de Ávila e Bolama, conde de Ávila | Prime ministers |
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| 13 Sep 1871 - 6 Mar 1877 | António Maria de Fontes Pereira de Melo (1st time) (b. 1819 - d. 1887) | Prime ministers |
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| 6 Mar 1877 - 26 Jan 1878 | António José de Ávila, marquês de Ávila e Bolama, conde de Ávila | Prime ministers |
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| 26 Jan 1878 - 29 May 1879 | António Maria de Fontes Pereira de Melo (2nd time) (s.a.) | Prime ministers |
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| 29 May 1879 - 23 Mar 1881 | Anselmo José Braamcamp | Prime ministers |
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| 23 Mar 1881 - 14 Nov 1881 | António Rodrigues Sampaio | Prime ministers |
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| 14 Nov 1881 - 16 Feb 1886 | António Maria de Fontes Pereira de Melo (3rd time) (s.a.) | Prime ministers |
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| 16 Feb 1886 - 14 Jan 1890 | José Luciano de Castro Pereira Corte-Real (1st time) (b. 1835 - d. 1914) | Prime ministers |
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| 14 Jan 1890 - 11 Oct 1890 | António de Serpa Pimentel | Prime ministers |
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| 11 Oct 1890 - 18 Jan 1892 | João Crisóstomo de Abreu e Sousa | Prime ministers |
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| 18 Jan 1892 - 22 Feb 1893 | José Dias Ferreira | Prime ministers |
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| 22 Feb 1893 - 5 Feb 1897 | Ernesto Rodolfo Hintze Ribeiro | Prime ministers |
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| 5 Feb 1897 - 26 Jul 1900 | José Luciano de Castro Pereira Corte-Real (2nd time) (s.a.) | Prime ministers |
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| 26 Jul 1900 - 20 Oct 1904 | Ernesto Rodolfo Hintze Ribeiro | Prime ministers |
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| 20 Oct 1904 - 19 Mar 1906 | José Luciano de Castro Pereira Corte-Real (3rd time) (s.a.) | Prime ministers |
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| 19 Mar 1906 - 19 May 1906 | Ernesto Rodolfo Hintze Ribeiro | Prime ministers |
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| 19 May 1906 - 4 Feb 1908 | João Franco | Prime ministers |
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| 4 Feb 1908 - 26 Dec 1908 | Francisco Joaquim Ferreira do Amaral (b. 1844 - d. 1923) | Prime ministers |
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| 26 Dec 1908 - 11 Apr 1909 | Artur Alberto de Campos Henriques | Prime ministers |
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| 11 Apr 1909 - 14 May 1909 | Sebastião Custódio de Sousa Teles | Prime ministers |
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| 14 May 1909 - 22 Dec 1909 | Venceslau de Sousa Pereira de Lima | Prime ministers |
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| 22 Dec 1909 - 26 Jun 1910 | Francisco António de Veiga Beirão | Prime ministers |
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| 26 Jun 1910 - 4 Oct 1910 | António Teixeira de Sousa | Prime ministers |
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| 4 Sep 1911 - 13 Nov 1911 | João Pinheiro Chagas | Prime ministers |
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| 13 Nov 1911 - 16 Jun 1912 | Augusto César de Almeida Vasconcelos Correia (b. 1867 - d. 1951) | Prime ministers |
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| 16 Jun 1912 - 9 Jan 1913 | Duarte Leite Pereira da Silva | Prime ministers |
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| 9 Jan 1913 - 9 Feb 1914 | Afonso Augusto da Costa (1st time) | Prime ministers |
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| 9 Feb 1914 - 12 Dec 1914 | Bernardino Luís Machado Guimarães | Prime ministers |
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| 12 Dec 1914 - 28 Jan 1915 | Vítor Hugo de Azevedo Coutinho | Prime ministers |
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| 28 Jan 1915 - 14 May 1915 | Joaquim Pereira Pimenta de Castro | Prime ministers |
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| 14 May 1915 - 17 May 1915 | Constitutional Junta - José Mendes Ribeiro Norton de Matos (b. 1867 - d. 1955) - António Maria da Silva (b. 1872 - d. 1950) - José de Freitas Ribeiro (b. 1868 - d. 1929) - Alfredo Ernesto de Sá Cardoso (b. 1864 - d. 1950) - Álvaro de Castro (b. 1878 - d. 1928) | Prime ministers |
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| 17 May 1915 - 29 Nov 1915 | José de Castro | Prime ministers |
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| 29 Nov 1915 - 16 Mar 1916 | Afonso Augusto da Costa (2nd time) | Prime ministers |
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| 16 Mar 1916 - 25 Apr 1917 | António José de Almeida | Prime ministers |
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| 25 Apr 1917 - 8 Dec 1917 | Afonso Augusto da Costa (3rd time) | Prime ministers |
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| 23 Dec 1918 - 27 Jan 1919 | João Tamagnini de Sousa Barbosa | Prime ministers |
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| 19 Jan 1919 - 13 Feb 1919 | Henrique Mitchell de Paiva Couceiro (b. 1861 - d. 1944) [in the name of Manuel II], in Porto and much of the North) | Prime ministers |
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| 27 Jan 1919 - 30 Mar 1919 | José Carlos de Mascarenhas Relvas | Prime ministers |
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| 30 Mar 1919 - 30 Jun 1919 | Domingos Leite Pereira (1st time) | Prime ministers |
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| 30 Jun 1919 - 21 Jan 1920 | Alfredo Ernesto de Sá Cardoso | Prime ministers |
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| 21 Jan 1920 - 8 Mar 1920 | Domingos Leite Pereira (2nd time) | Prime ministers |
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| 8 Mar 1920 - 6 Jun 1920 | António Maria Baptista | Prime ministers |
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| 6 Jun 1920 - 26 Jun 1920 | José Ramos Preto (acting) | Prime ministers |
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| 26 Jun 1920 - 19 Jul 1920 | António Maria da Silva (1st time) | Prime ministers |
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| 19 Jul 1920 - 20 Nov 1920 | António Joaquim Granjo (1st time) | Prime ministers |
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| 20 Nov 1920 - 30 Nov 1920 | Álvaro de Castro (1st time) | Prime ministers |
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| 30 Nov 1920 - 2 Mar 1921 | Liberato Damião Ribeiro Pinto | Prime ministers |
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| 2 Mar 1921 - 23 May 1921 | Bernardino Luís Machado Guimarães | Prime ministers |
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| 23 May 1921 - 30 Aug 1921 | Tomé José de Barros Queirós | Prime ministers |
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| 30 Aug 1921 - 19 Oct 1921 | António Joaquim Granjo (2nd time) | Prime ministers |
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| 19 Oct 1921 - 5 Nov 1921 | Manuel Maria Coelho | Prime ministers |
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| 5 Nov 1921 - 16 Dec 1921 | Carlos Henrique da Silva Maia Pinto (b. 1866 - d. 1932) | Prime ministers |
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| 16 Dec 1921 - 7 Feb 1922 | Francisco Pinto da Cunha Leal | Prime ministers |
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| 7 Feb 1922 - 15 Nov 1923 | António Maria da Silva (2nd time) | Prime ministers |
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| 15 Nov 1923 - 18 Dec 1923 | António Ginestal Machado | Prime ministers |
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| 18 Dec 1923 - 7 Jul 1924 | Álvaro de Castro (2nd time) | Prime ministers |
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| 7 Jul 1924 - 22 Nov 1924 | Alfredo Rodrigues Gaspar | Prime ministers |
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| 22 Nov 1924 - 15 Feb 1925 | José Domingues dos Santos | Prime ministers |
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| 15 Feb 1925 - 1 Jul 1925 | Vitorino Máximo de Carvalho Guimarães (b. 1876 - d. 1957) | Prime ministers |
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| 1 Jul 1925 - 1 Aug 1925 | António Maria da Silva (3rd time) | Prime ministers |
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| 1 Aug 1925 - 18 Dec 1925 | Domingos Leite Pereira (3rd time) | Prime ministers |
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| 18 Dec 1925 - 30 May 1926 | António Maria da Silva (4th time) | Prime ministers |
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| 30 May 1926 - 19 Jun 1926 | José Mendes Cabeçadas Júnior | Prime ministers |
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| 19 Jun 1926 - 9 Jul 1926 | Manuel de Oliveira Gomes da Costa | Prime ministers |
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| 9 Jul 1926 - 18 Apr 1928 | António Óscar de Fragoso Carmona | Prime ministers |
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| 18 Apr 1928 - 8 Jul 1929 | José Vicente de Freitas | Prime ministers |
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| 8 Jul 1929 - 21 Jan 1930 | Artur Ivens Ferraz | Prime ministers |
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| 21 Jan 1930 - 5 Jul 1932 | Domingos Augusto Alves da Costa e Oliveira (b. 1873 - d. 1957) | Prime ministers |
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| 5 Jul 1932 - 25 Sep 1968 | António de Oliveira Salazar | Prime ministers |
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| 25 Sep 1968 - 25 Apr 1974 | Marcelo Caetano | Prime ministers |
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| 16 May 1974 - 18 Jul 1974 | Adelino da Palma Carlos | Prime ministers |
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| 18 Jul 1974 - 19 Sep 1975 | Vasco dos Santos Gonçalves | Prime ministers |
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| 19 Sep 1975 - 23 Jul 1976 | José Baptista Pinheiro de Azevedo | Prime ministers |
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| 23 Jul 1976 - 28 Aug 1978 | Mário Soares (1st time) | Prime ministers |
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| 28 Aug 1978 - 22 Nov 1978 | Alfredo Nobre da Costa | Prime ministers |
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| 22 Nov 1978 - 1 Aug 1979 | Carlos Mota Pinto | Prime ministers |
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| 1 Aug 1979 - 3 Jan 1980 | Maria de Lurdes Pintassilgo (f) | Prime ministers |
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| 3 Jan 1980 - 4 Dec 1980 | Francisco Sá Carneiro | Prime ministers |
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| 4 Dec 1980 - 9 Jan 1981 | Diogo Freitas do Amaral (acting) | Prime ministers |
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| 9 Jan 1981 - 9 Jun 1983 | Francisco Pinto Balsemão | Prime ministers |
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| 9 Jun 1983 - 6 Nov 1985 | Mário Soares (2nd time) | Prime ministers |
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| 6 Nov 1985 - 30 Oct 1995 | Aníbal Cavaco Silva | Prime ministers |
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| 30 Oct 1995 - 6 Apr 2002 | António Guterres | Prime ministers |
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| 6 Apr 2002 - 17 Jul 2004 | José Manuel Durão Barroso | Prime ministers |
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| 17 Jul 2004 - 12 Mar 2005 | Pedro Santana Lopes | Prime ministers |
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| 12 Mar 2005 - | José Sócrates | Prime ministers |
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