In 1947 he became a student (fellow) and tutor in Politics at
Christ Church, Oxford, replacing
Lord Pakenham, who had joined
Clement Attlee's government. His first work was an edition of the papers of
Douglas Haig, which did much to restore Haig's reputation. It was followed by a biography of
Bonar Law, written at the invitation of
Lord Beaverbrook, Law's executor. Blake's most famous work is his 1966
Disraeli, a biography of
Benjamin Disraeli, which has been variously described as "the best single-volume biography of any British prime minister" In the
House of Lords he took the Conservative whip. In 1972 he moved the address in reply to the
Queen's Speech. His
History of Rhodesia (1977) is, according to
Kenneth O. Morgan, "essentially a study of white rule, ending with sharp comments on the illegal breakaway regime of Ian Smith, where Blake's views were much influenced by his friendship with the liberal
Garfield Todd and his daughter". In 1992 Blake gave the centenary
Romanes Lecture on "Gladstone, Disraeli and Queen Victoria". Blake was for many years Senior Member (the University don responsible for ruling on internal disputes such as accusations of electoral malpractice) of the
Oxford University Conservative Association. ==Politics==