Before retiring, Sir Stephen Wall was a member of the British Diplomatic Service for 35 years. He worked closely with five British Foreign Secretaries and was Foreign Policy Adviser to Prime Minister John Major.

His European experience includes five years as Head of the Foreign Office European Department; two years as Britain's  Ambassador to Portugal; five years as UK Permanent Representative to the EU and four years as EU adviser to Prime Minister Tony Blair and Head of the European Secretariat in the Cabinet Office. His book on Britain's EU policy, A Stranger in Europe, was published in 2008. He has written The Official History of Britain and the European Community, 1963-1975, published in July 2012.  

Sir Stephen joined the Board of Trustees at Cumberland Lodge in 2009 and went on to become Chairman of the Board. He will come to the end of his term here in early 2019.