A prehistoric tomb at Gay and many vestiges at Daus attest to human presence since antiquity. It was in 1298 when the name of the noble family of
Ailhon (
Ailhou in patois and
Alho in Latin) appeared for the first time when Pierre d'Ailhon sold a nearby fortified house to the house of Mirabel. During the
Wars of Religion, particularly from 1586 to 1591, the village paid a heavy price: the fort was taken and retaken and nothing remains except a tower in the Chabert house south of the village. In 1670, Ailhon participated in the
Roure Revolt, a rebellion caused by a disastrous harvest followed by a rumour of an increase in taxes. The insurgents armed only with scythes and sticks were massacred by the king's armies on the plain of
Lavilledieu. The leader of the revolt, Anthoine du Roure, was arrested in
Saint-Jean-Pied-de-Port and
broken on the wheel in
Montpellier on 29 October 1670. His body was then exposed on the high road from Montpellier to
Nimes and his head placed on top of the Porte Saint-Antoine in
Aubenas. A square
Jacques Roure was dedicated to his memory in Aubenas (on the proposal of Councillor Durand in 1896). Another square (Anthoine du Roure) also bears his name in
Lachapelle-sous-Aubenas. The disorder during the
French Revolution resulted in a band of brigands led by Fourniquet de Chassiers (executed at
Saint-Cirgues-de-Prades in May 1800) scouring the territory. ==Administration==