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| | Ireland Information Guide , Irish, Counties, Facts, Statistics, Tourism, Culture, How |
 | | The title of viscount was not officially inherited, but he became briefly the 2nd Marquess of Londonderry in the peerage of Ireland on the death of his father in 1821. |
 | | In this role he was instrumental in negotiating what has become known as a Quadruple alliance between the United Kingdom, Austria, Russia and Prussia at Chaumont in March 1814, in the negotiation of the Treaty of Paris that brought peace with France, and at the Congress of Vienna. |
 | | Despite his many achievements, Castlereagh was extremely unpopular within the country due to his supposed reactionism abroad, and his support at home for the repressive measures of Home Secretary Lord Sidmouth. |
| www.irelandinformationguide.com /Robert_Stewart,_Viscount_Castlereagh (729 words) |
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