Eric Drummond, 7th Earl of Perth

Quiet and unassuming, he succeeded in building an effective international staff. However he failed to resolve major international disputes because of pressure from Britain and France, the most powerful League members. He moved on to become British Ambassador to Italy (1933–1939) and then the chief adviser on foreign publicity in the Ministry of Information (1939–1940). In 1946, he became deputy leader of the Liberal Party in the House of Lords. Provided by Wikipedia