The church of Le Falga is mentioned as early as 1318 and the village had two consuls in 1384. The south tower, the oldest part of the château, dates from this period, the late 14th or early 15th century. An arrow slit still defends the façade, a gun loop the windward side. Vaulted rooms on the ground floor; upstairs, one large space for the lord and his family.
In February 1570 the Protestant army crossed the Lauragais. Caraman was retaken, Cuq and Auriac destroyed, as was the church of Le Vaux and its annex at Le Falga. The château then belonged to Jacques and Jeanne Vernès, Protestants. Centuries later, Marie-Laure de Caffarelli found at the bottom of the well a carved chrismon, intact and blackened by silt — perhaps torn from the church of Le Vaux and thrown there never to be seen again.