[edit] Early life and family life
The son of Sydney Jebb, of Firbeck Hall, Yorkshire, Jebb was educated at Eton College, then Magdalen College, Oxford, gaining a first in History. In 1929 he married Cynthia Noble, with whom he had one son and two daughters, Miles, Vanessa, married to the historian Hugh Thomas, and Stella, married to the scientist Joel de Rosnay.


[edit] Diplomatic career
Jebb entered the Foreign Service in 1924, served in Tehran, where he became known to Harold Nicolson and to Vita Sackville-West and in Rome, as well as at the Foreign Office in London where, amongst other positions, he served as the Private Secretary to the Head of the Diplomatic Service.


[edit] World War II
In August 1940, Jebb was appointed to the Ministry of Economic Warfare with temporary rank of Assistant Under-Secretary. In 1942 he was appointed Head of the Reconstruction Department and in 1943 was made a Counsellor within the Foreign Office. In this capacity he attended numerous international conferences, including those at Tehran, Yalta and Potsdam.


[edit] Acting UN Secretary-General
After World War II, he served as Executive Secretary of the Preparatory Commission of the United Nations in August 1945, being appointed Acting United Nations Secretary-General from October 1945 to February 1946 until the appointment of the first Secretary-General Trygve Lie.


[edit] Ambassador
Returning to London, Jebb served as Deputy to the Foreign Secretary Ernest Bevin at the Conference of Foreign Ministers before serving as the Foreign Office's United Nations Adviser (1946-47). He represented the United Kingdom at the Brussels Treaty Permanent Commission with personal rank of Ambassador. He became the United Kingdom's Ambassador to the United Nations from 1950-1954 and to Paris from 1954-1960.


[edit] Political career
In 1960 Jebb was made a hereditary peer and as Baron Gladwyn became involved in politics as a member of the Liberal Party. He was Deputy Leader of the Liberals in the House of Lords 1965-1988 and spokesman on foreign affairs and defence. An ardent European, he served as a Member of the European Parliament 1973-1976 where he was also the Vice-President of the Parliament's Political Committee. He unsuccessfully contested the Suffolk seat in the European Parliament in 1979.

When asked why he had joined the Liberal party in the early 1960s, he replied that the Liberals were a party without a general and that he was a general without a party. Like many Liberals, he passionately believed that education was the key to social reform.