Séguier, Pierre, duc de Villemor (pyĕr sāgyāˈ dük də vēlmôrˈ) [key], 1588–1672, chancellor of France. Beginning as counselor to the Parlement of Paris, he rose to become chancellor in 1635. He crushed a revolt in Normandy in 1639, presided (1642) over the trial of the marquis de Cinq Mars, and in 1661 arraigned Nicholas Fouquet on charges of embezzlement at the start of a trial that ended in Fouquet's being condemned (1664) to banishment and eventually, life imprisonment. A friend of Cardinal Mazarin, he was instrumental in having the Parlement accept Anne of Austria as regent for her infant son, Louis XIV.
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