From 1537 until 1567 he was one of the four Secretaries of State (ministers managing the government). He was one of the plenipotentiary of France to the
Treaty of Cateau-Cambrésis, ending the
Italian War of 1551–1559. He served as secretary of state to kings
Francis I,
Henry II,
Francis II and
Charles IX. He was associated with the
Assembly of Notables at
Fontainebleau, where he produced an edict of tolerance for reforms (1560) and the (1562). ==Family==