Edward Daniel Joseph Wilson, 1911 Encyclopædia Britannica, Volume 16… (1911)
“ From March 1812 to July 1822 Castlereagh’s biography is, in truth, the history of England. Though never technically prime minister, during these years he wielded a power such as few ministers have exercised. Political opponents and personal ill-wishers admitted that he was the ablest leader who ever controlled the House of Commons for so long a period. As a diplomatist, nobody save Marlborough had the same influence over men or was given equal freedom by his colleagues at home. Foreigners saw in him the living presence of England in the camp of the Allies. ”
