Marc-Guillaume Alexis Vadier
French politician
Marc-Guillaume Alexis Vadier (17 July 1736 – 14 December 1828) was a major French politician of the French Revolution. He is sometimes called the "Great Inquisitor", for his active participation in the Reign of Terror.
He is primarily known for having created the département of Ariège and mostly for having firmly led the Committee of General Security, thus being one of the key figures of the Reign of Terror and the "dean of its political police." Vadier also had an influential role on 9 Thermidor, during the fall of Robespierre, with whom he had a long-standing rivalry.
He managed to avoid reprisals for his role during the Terror, which targeted him following Robespierre's fall, and survived the Revolution, participating in relative anonymity during the First Empire period. He was later exiled under the law targeting regicides during Louis XVIII's reign.
Like Robespierre, Barère, or Billaud-Varenne, his exact role during the Terror is still debated by historians. However, it is acknowledged that a significant part of the repressive measures of the Terror and the executions can be attributed to the Committee of General Security, which he led, and that he participated in organizing the Great Terror by increasing the number of executions alongside Fouché, notably to accuse Robespierre.
Biography
Early career
Son of a wealthy family in Pamiers, in the County of Foix (now Ariège), he served in the army of King Louis XV, taking part in the Seven Years' War and the Battle of Rossbach on 5 November 1757. Upon his return to France in 1758, Vadier acquired large tracts of land in Pamiers and in 1770 purchased the office of conseiller (magistrate), which brought him into conflict with many of the local aristocracy and affluent bourgeoisie. Elected as deputy to the Third Estate in the Estates-General of France for the County of Foix (in 1789), Vadier took no prominent part in that assembly.
“Marc-Guillaume Alexis Vadier” enters the record as french politician. Crown Archives preserves that source wording while asking what Marc-Guillaume, Alexis and Vadier can confirm, complicate or overturn.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q276698. VIAF identifies the subject as 44308736. The Library of Congress control number is nr90003153. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1736, 1828, 1757 and 1758.
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