No man ever served the cause to which he devoted himself with greater zeal and sincerity.
He was lavish of his own private means in its interest, and, even when his advice and opinion were most slighted, he was ready to sacrifice himself, his rank, and dignity to the good of the cause.

Had he had the good fortune to command an army of his own countrymen unfettered by others, it is probable that he would have gained a renown equal to that of the greatest commanders the world has known.
The great services which he had rendered were warmly felt and acknowledged by the people of England on his return, and the attempts of his enemies to undermine his reputation were confuted by the papers which he brought back with him.

For a time Peterborough took a considerable part in politics, and his acrimony in debate so enraged his enemies that his conduct during the war in Spain was called into question.

A debate on the subject took place.

In this he successfully defended himself from the attacks made against him, and a formal vote of thanks to him was passed.
Some years afterward he retired altogether from public life, and privately married Miss Anastasia Robinson, his first wife having died many years before.