George Nathaniel Curzon - Carlton House Terrace, London, UK - Blue Plaques on Waymarking.com

The plaque reads:

Although the plaque is placed on an affluent looking building the skill of the decorators was sadly lacking. There is poor cutting in a round the edge and a splash of paint near the bottom of the plaque.

The Answers.com website (visit link) has this brief biography of Curzon:
"George Nathaniel Curzon (b. Keddlestone, Derbyshire, 11 Jan. 1859; d. 20 Mar. 1925) British; Viceroy of India 1899 – 1905, Foreign Secretary 1919 – 24, Irish rep. peer 1908, Earl 1911, Marquess 1922 Educated at Eton and Oxford, Curzon became a fellow of All Souls in 1883. Destined — not least in his own eyes — for greatness, he established a reputation for his knowledge of foreign affairs. He travelled extensively — publishing a work on Persia in 1892 — and in 1891, five years after entering the House of Commons as Conservative member for Southport, was appointed Under-Secretary of State at the India Office; in 1895 he was made Under-Secretary at the Foreign Office, answering for the department in the Commons while Foreign Secretary (and Prime Minister) Lord Salisbury was in the Lords. In 1898, at the age of 39, he achieved one of his life's greatest ambitions — to be Viceroy of India. An able administrator but a vain man, his viceroyship ended abruptly after a clash with the military commander, Lord Kitchener.

He was created an Irish peer in order to resume his political career, but for several years there was no career to pursue. His wife died in 1906 and he spent much of his time absorbed in interests outside politics. Some compensaton came in 1911 when he was created an earl, but it was to be another four years before he returned to public office.

His restoration to high office came in 1915 when he entered Asquith's coalition as Lord Privy Seal, before serving briefly as President of the Air Board in 1916 and then for three years as Lord President of the Council. He served as a member of the inner War Cabinet throughout its existence (December 1916 to October 1919). He also took over leadership of the Conservative Party in the House of Lords. In 1919, he succeeded Balfour as Foreign Secretary. It was a post to which his experience, sense of superiority, and ambition lent itself — he was only one step from his ultimate goal, that of the premiership.

The ultimate goal was denied him in 1923, when the King decided that a Prime Minister could not serve in a house in which the official Opposition party was not represented. He carried on as Foreign Secretary until the party was defeated at the polls. On the party's return to power in 1924, Baldwin made him Lord President of the Council. He died the following year at the age of 66, a disappointed man. His life was a story of achievement — commoner to Marquess, Viceroy, Foreign Secretary — but not to the extent to which he considered himself destined."