 Austria confirmed the loss of its territories by the Treaty of Campo Formio, in 1797.Henri-Louis de Guernoval, marquis d'Esquelbecq (1729–1801) (marquis de Ledringhem), captain in second of Louis XIV Royal-Cravattes regiment was the last of the nobility member to administer Ledringhem.Ledringhem became part of the First French Empire 1810 Napoleonic Nord département.