He stayed while in Liverpool at Seaforth House, the residence of Mr. John Gladstone, one of the merchant princes of Liverpool, whose son William Ewart Gladstone was afterwards to make the name of the family famous in history. During his stay at Seaforth House, Canning used to spend much of his time gazing out upon the sea, while the little boy William Ewart Gladstone played on the lawn near him. It was here that Canning heard the news {36} which led to an entire change in his purpose, and opened the way to his greatest success. His late colleague, his late rival, Castlereagh, was dead--had died by his own hand. Castlereagh had lately succeeded to his father's title, and had become Marquis of Londonderry; but as the marquisate was only an Irish peerage, he could still sit in the House of Commons as the chosen representative of an English constituency. His mind had seemed, for some time, to be darkened by troubles of which he gave no account to his friends, and he suddenly committed suicide. There are many conjectures and suggested explanations as to the immediate cause of the act, but all we know for certain is that the strong mind seemed suddenly to give way, and that Castlereagh could endure life no longer. Seldom, indeed, has the death of a public man in modern times been received with any such demonstrations as those which in many places followed the news that Castlereagh had done himself to death. In every community all over the country, and indeed all over Europe and the civilized world, there were those who proclaimed that the death of such a man was a positive blessing to the human race. Wherever men were struggling against despotism and suffering from tyranny, there were those who felt and who declared that the departure of Castlereagh from this world was a benefit to humanity at large. [Sidenote: 1822--Canning as Foreign Secretary]