Pedro de Sousa Holstein, 1st Duke of Palmela

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His Excellency The Duke of Palmela KGC FC
Portrait by Thomas Lawrence
Prime Minister of Portugal
In office 20 May 1846 – 6 October 1846
Monarchs	Maria II and Fernando II
Preceded by	Duke of Terceira
Succeeded by	Duke of Saldanha
In office 7 February 1842 – 9 February 1842
Monarchs	Maria II and Fernando II
Preceded by	Joaquim António de Aguiar
Succeeded by	Duke of Terceira
In office 24 September 1834 – 4 May 1835
Monarch	Maria II
Preceded by	Bento Pereira do Carmo (de facto)
Succeeded by	Count of Linhares
President of the Chamber of Peers
In office 10 July 1842 – 12 October 1850
Monarchs	Maria II and Fernando II
Preceded by	Himself (President of the Chamber of Senators)
Succeeded by	Guilherme Henriques de Carvalho
In office 14 August 1834 – 4 June 1836
Monarch	Maria II
Preceded by	Duke of Cadaval
Succeeded by	Manuel Duarte Leitão (President of the Chamber of Senators)
President of the Chamber of Senators
In office 17 February 1840 – 1 January 1842
Monarchs	Maria II and Fernando II
Preceded by	Manuel Duarte Leitão
Succeeded by	Himself (President of the Chamber of Peers)
In office 2 May 1839 – 11 January 1840
Monarchs	Maria II and Fernando II
Preceded by	Manuel Duarte Leitão
Succeeded by	Manuel Duarte Leitão
Ministerial portfolios
1820–1821	War Affairs
1823–1825	Foreign Affairs
1832–1832	Interior Affairs
1835–1835	Foreign Affairs
Feb 1842	Foreign Affairs
1846–1846	Finance Affairs
May 1846	Justice Affairs (acting)
May 1846	Interior Affairs
1846–1846	Interior Affairs
Ambassadorial posts
1809–1812	Spain
1816–1820	United Kingdom
1825–1827	United Kingdom
Personal details
Born	8 May 1781 Turin, Kingdom of Sardinia
Died	12 October 1850 (aged 69) Lisbon, Kingdom of Portugal
Spouse	Eugénia Francisca Xavier Teles da Gama ​ ​ (m. 1810; died 1848)​
Children	15
Signature

D. Pedro de Sousa Holstein, 1st Duke of Faial and Palmela (8 May 1781–12 October 1850) was one of the most important Portuguese diplomats and statesmen in the first half of the 19th century. He also served as the country's first modern Prime Minister (with the title of "President of the Council of Ministers").