The monastery of Sainte-Eugénie was a Benedictine foundation near Peyriac-de-Mer between 817 and 1189, when it was absorbed by the Cistercian abbey of Fontfroide.
[4] It is listed as the monasterium sanctae Eugeniae among the monasteries in Septimania owing the emperor their prayers, but not military service or tribute.
[1][5] In the 19th century, the Histoire générale de Languedoc and Antoine Sabarthès identified the monastery with the church of the same dedication in Villesèquelande, which was mentioned as a possession of the abbey of Montolieu in 931.
On 6 December 1163, the viscountess Ermengarde of Narbonne granted the monastery the allodial on which it lay, thus renouncing her seigneurial rights.
In 1178, they received from Archbishop Pons d'Arsac churches at Gaussan and Saint-André-de-Roquelongue and a community of lay sisters at Les Olieux, whose prior was Guilhem du Lac.
[5] Its prior, now Guilhem du Lac, and his five brothers formally donated the monastery and all its holdings to Fontfroide.
Raimond de Bages, the prior of Les Olieux, also donated the properties of that house to Fontfroide.