Sir Edward Thornton, 1st Count of Cacilhas, GCB, PC, FRS (22 October 1766 – 3 July 1852) was a British diplomat, and father of fellow diplomat, Sir Edward Thornton.
Early life
He was born in London, the third of three sons and two daughters, of William Thornton (1738–1769), and Dorothy (née Thompson) Thornton (d. 1769). His father, who was originally from Hull, East Yorkshire, established himself in London as a prosperous innkeeper and Freeman of the City of London.[1] His mother, as later described by Sir Edward, was "a countrywoman... a native of the... East Riding, of a very respectable family". Dorothy died three months after the birth of a daughter, and eight months later, William was suddenly taken ill and died soon after, leaving their children orphaned.[2]
He became British vice-consul in Maryland in June 1793 and then served as Envoy Extraordinary and Minister Plenipotentiary to the United States from 1800 to 1804.[3] After holding various diplomatic posts in Hamburg and the Hanse Towns, he was then posted to Sweden as Minister-Plenipotentiary in December 1807 with the objective of forming an alliance against Napoleon, returning to England in November 1808. In October 1811 he went again to Sweden (until 1817) on a special mission in HMS Victory and he successfully negotiated treaties of alliance with both Sweden and Russia, both called the Treaty of Örebro. This was the first stage in the creation of an alliance of Northern European States against Napoleon. He negotiated the Treaty of Kiel for the United Kingdom and was present with the prince royal of Sweden (Jean Baptiste Bernadotte) when the allies entered Paris in 1815.[4][5]
He became a member of the Privy council in 1816. He was appointed minister to Portugal in July 1817 and joined the Portuguese court in Brazil. He was ambassador to Portugal from April 1819 to March 1821, when he returned to England. He returned again to Portugal as an ambassador from August 1823 to August 1824 during which time he invested the King of Portugal with the Order of the Garter and assisted the King during the insurrection. The title of Count of Cacilhas in the Portuguese nobility was conferred on Thornton and his heirs, for three generations,[6] by the King of Portugal.[7][8][9]
In 1812, Thornton married Magdalena Wilhelmina Amalia Kohp of Hanover, a daughter of Joannes Michael Kopf and Caecilia (née Roth) Kohp. Together, they had one daughter and six sons, including:
^William Thomas Thornton's family, ancestry, and early years: Some Findings from recently discovered manuscripts and letters, Mark Donoghue, in History of Political Economy, vol. 40, issue 3, 2008 pp. 516-517
^Burke's Great War Peerage, Burke's Peerage and Gentry (UK) Ltd, 2008 [a reprint of A Genealogical and Heraldic History of the Peerage and Baronetage, 76th edition, ed. Ashworth P. Burke, Harrison & Sons, 1914], p. 2112
^William Thomas Thornton's family, ancestry, and early years: Some Findings from recently discovered manuscripts and letters, Mark Donoghue, in History of Political Economy, vol. 40, issue 3, 2008 pp. 516-517