West Germany 's Chancellor Helmut Schmidt was part of the team that started the G6 Summit .
The summits were not meant to be linked formally with wider international institutions ; and in fact , a mild rebellion against the stiff formality of other international meetings was a part of the genesis of cooperation between France 's President Giscard d'Estaing and Germany 's Chancellor Helmut Schmidt as they conceived the first Group of Six ( G6 ) summit in 1975.Reinalda , Bob and Bertjan Verbeek . (
19th G7 summit