After this politician discovered a plot to replace him with Arthur Wellesley, he fought a duel with and wounded George Canning.
A biography of this politician subtitled 'From Enlightenment to Tyranny' was written by John Bew. This politician came up with the plan to send an expeditionary force to Walcheren, which was quickly ravaged by disease. As Chief Secretary of Ireland, this man collaborated with Lord Cornwallis to force the Irish Parliament to pass the (*) Act of Union. After this politician discovered a plot to replace him with Arthur Wellesley, he fought a duel with and wounded George Canning. This man committed suicide when he believed he was being blackmailed for homosexuality. For 10 points, name this British Tory politician who represented the United Kingdom at the start of the Congress of Vienna.
A biography of this politician subtitled 'From Enlightenment to Tyranny' was written by John Bew.
Lord Castlereagh [or Robert Stewart, Viscount Castlereagh]