Definition of Jacobin club

The Jacobin Club was the largest and most powerful political club of the French Revolution. It originated as the Club Breton, formed at Versailles as a group of Breton deputies to the Estates General of 1789. At the height of its influence, there were between five and eight thousand chapters throughout France, with a membership estimated at 500,000. After the fall of Robespierre the club was closed.