When the Reign of Terror began, the mayor was run out, on 15 August 1793, and replaced by a Jacobin. The château was transformed into a prison from 1793 to 1794, designated for suspects from the département de l'Oise. Sold as a national asset in 1799, the chateau was transformed into a stone quarry by a pair of entrepreneurs. Only the "little château" was preserved. The Great Stables were requisitioned by the army and used in turn by the , the 1er dragons or 1st Dragoons from 1803 to 1806 then the 1er régiment de chevau-légers lanciers polonais, or 1st Light Artillery Polish Lancers, from 1808 to 1814.