Joaquim Lobo da Silveira, 7th Count of Oriola

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Joaquim Lobo da Silveira, 7th Count of Oriola (1772–1846) was a Portuguese plenipotentiary at the Congress of Vienna in 1815. [1][2] While at the Congress he signed a number of treaties and documents on behalf of Prince-Regent John of Portugal including the Declaration of the Powers, on the Abolition of the Slave Trade, on 8 February 1815.[2]

Later he acquired land in Prussia and settled there becoming a naturalised citizen of Prussia. The King of Prussia granted him the title of graf (the German equivalent to his Portuguese title of conde (count)).[1]


  1. ^ a b Bonifácio 2011, p. 114 footnote 119.
  2. ^ a b Hansard 1816, pp. 200–201.


  • (Portuguese) Bonifácio, Maria de Fátima (2011), Memórias do Duque de Palmela, Leya, p. 114 footnote 119, ISBN 9789722045056 
  • Hansard, T.C (1 February to 6 March 1816), The Parliamentary Debates from the Year 1803 to the Present Time …, 32, T.C. Hansard, pp. 200201  Check date values in: |date= (help)

Further reading[edit]

  • Jacob van der Merck (c.1610 - 1664), The Weiss Gallery, 2012, retrieved December 2012  Check date values in: |access-date= (help); External link in |publisher= (help) "His Portuguese grandfather, Joaquin Jose Lobo da Silveira (1772 – 1846)... [whose] son was Eduardo Ernesto Lobo da Silveira, Graf von Oriola (1809 – 1862) [de]"