Christopher Ewart-Biggs, the British ambassador to the Republic of Ireland, is assassinated by the Provisional IRA.

Christopher Thomas Ewart Ewart-Biggs, (5 August 1921 – 21 July 1976) was the British Ambassador to Ireland, an author and senior Foreign Office liaison officer with MI6. He was killed in 1976 by the Provisional Irish Republican Army (IRA) in Sandyford, Dublin.

His widow, Jane Ewart-Biggs, became a Life Peer in the House of Lords, campaigned to improve Anglo-Irish relations and established the Christopher Ewart-Biggs Memorial Prize for literature.