The Heads of State or Government of the world's seven most industrialised countries met in Versailles to discuss the adoption of an international monetary agreement. Participants: For Canada: Pierre Elliott Trudeau, Prime Minister; Mark MacGuigan, Secretary of State for External Affairs; Allan J. MacEachen, Minister for Finance; de Montigny Marchand, Sherpa. For France: François Mitterrand, President; Claude Cheysson, Minister for External Relations; Jacques Delors, Minister for the Economy, Finance and Budget; Jacques Attali, Sherpa. For Germany: Helmut Schmidt, Federal Chancellor; Hans-Dietrich Genscher, Federal Minister for Foreign Affairs; Manfred Lahnstein, Federal Minister of Finance; Otto Lambsdorff, Minister for Economic Affairs; Horst Schulmann, Sherpa. For Italy: Giovanni Spadolini, Italian Prime Minister; Emilio Colombo, Minister for Foreign Affairs; Beniamino Andreatta, Minister of Treasury; Sergio Berlinguer, Sherpa. For Japan: Zenko Suzuki, Prime Minister; Yoshio Sakurauchi, Minister for Foreign Affairs; Michio Watanabe, Minister for Finance; Shintaro Abe, Minister for Foreign Trade and Industry; Nobuo Matsunaga, Sherpa. For the United Kingdom: Margaret Thatcher, Prime Minister; Francis Pym, Secretary of State for Foreign and Commonwealth Affairs; Geoffrey Howe, Chancellor of the Exchequer; Robert Armstrong, Sherpa. For the USA: Ronald Reagan, President; Alexander Haig, Secretary of State; Donald Regan, Secretary of Treasury; Robert Hormats, Sherpa. For the EC: Wilfried Martens, Chairman of the Council of Ministers; Gaston Thorn, President of the CEC; Jean Durieux, Sherpa.
Western Economic Summit in Versailles (G7): meeting at the Grand Trianon and reception in the Hall of Mirrors