The Most Honourable The Marquess of Londonderry KG GCH PC PC |
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Secretary of State for Foreign Affairs | |
In office 4 March 1812 – 12 August 1822 |
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Monarch |
George III George IV |
Prime Minister | The Earl of Liverpool |
Preceded by | The Marquess Wellesley |
Succeeded by | George Canning |
Leader of the House of Commons | |
In office 4 March 1812 – 12 August 1822 |
|
Monarch | George III George IV |
Prime Minister | The Earl of Liverpool |
Preceded by | Hon. Spencer Perceval |
Succeeded by | George Canning |
Secretary of State for War and the Colonies | |
In office 1807–1809 |
|
Monarch | George III |
Prime Minister | The Duke of Portland |
Preceded by | William Windham |
Succeeded by | The Earl of Liverpool |
In office 1805–1806 |
|
Monarch | George III |
Prime Minister | Hon. William Pitt the Younger |
Preceded by | The Earl Camden |
Succeeded by | William Windham |
President of the Board of Control | |
In office 1802–1806 |
|
Monarch | George III |
Prime Minister |
Henry Addington William Pitt the Younger |
Preceded by | The Earl of Dartmouth |
Succeeded by | The Lord Minto |
Chief Secretary for Ireland | |
In office 1798–1801 |
|
Monarch | George III |
Prime Minister | William Pitt the Younger |
Preceded by | Thomas Pelham, 2nd Earl of Chichester |
Succeeded by | Charles Abbot, 1st Baron Colchester |
Personal details | |
Born |
18 June 1769 Dublin, Ireland |
Died |
12 August 1822 (aged 53) Loring Hall, Kent, England, UK |
Nationality | British |
Political party |
Whig (1790–1795) Tory (1795–1822) |
Spouse(s) | Lady Amelia Hobart |
Parents |
Robert Stewart, 1st Marquess of Londonderry Lady Sarah Frances Seymour-Conway |
Alma mater | St. John's College, Cambridge |
Religion | Presbyterian |
Signature |
Robert Stewart, 2nd Marquess of Londonderry, KG, GCH, PC, PC (18 June 1769 – 12 August 1822), usually known as Lord Castlereagh (/ˈkɑːsəlreɪ/ KAH-sul-RAY), was an Irish/British statesman. As British Foreign Secretary, from 1812 he was central to the management of the coalition that defeated Napoleon and was the principal British diplomat at the Congress of Vienna. Castlereagh was also leader of the British House of Commons in the Liverpool government from 1812 until his suicide in August 1822. Early in his career, as Chief Secretary for Ireland, he was involved in putting down the Irish Rebellion of 1798 and was instrumental in securing the passage of the Irish Act of Union of 1800.