Valéry Giscard d'Estaing was the President of France from 1974 to 1981. His tenure was marked by social reforms, the promotion of nuclear power, and the initiation of several major infrastructure projects like the TGV. He contributed significantly to European integration and was involved in drafting the Treaty establishing a Constitution for Europe.
This is based on winning 1 head-to-head matchups with other famous people, but also losing 28 head-to-head matchups.
Most recently Valéry Giscard d'Estaing lost a matchup to Bryan Cranston (#1772) voted by someone from Canada.