Mark Lyall Grant
Sir Mark Lyall Grant GCMG Mark Lyall Grant speaking at Chatham House in 2011 United Kingdom National Security Adviser In office 7 September 2015 – 13 April 2017 Monarch Elizabeth II Prime Minister David Cameron Theresa May Preceded by Kim Darroch Succeeded by Mark Sedwill Permanent Representative of the United Kingdom to the United Nations In office 1 November 2009 – May 2015 Monarch Elizabeth II Preceded by John Sawers Succeeded by Matthew Rycroft Director-General for Political Affairs at the United Kingdom Foreign and Commonwealth Office In office 2007–2009 Preceded by John Sawers Succeeded by Geoffrey Adams Personal details Born ( 1956-05-29 ) 29 May 1956 (age 62) Hammersmith, London, England Spouse(s) Sheila Children 2 Alma mater Eton College Trinity College, Cambridge Sir Mark Justin Lyall Grant , GCMG (born 29 May 1956) is a former senior British diplomat who was previously the United Kingdom...