The Carmelite Church is Gothic and was built in the 14th century. It has a wealth of treasures, including gravestones and the choir stalls (15th century). That the Carmelite monks honoured Our Lady can be seen in the many illustrations of Mary e.g. the Grape Madonna (outside the church), the Madonna in the Rosary and the Pieta. The former Carmelite monastery is now the Town Hall.
References:The Château de Foix dominates the town of Foix. An important tourist site, it is known as a centre of the Cathars. Built on an older 7th-century fortification, the castle is known from 987. In 1002, it was mentioned in the will of Roger I, Count of Carcassonne, who bequeathed the fortress to his youngest child, Bernard. In effect, the family ruling over the region were installed here which allowed them to control access to the upper Ariège valley and to keep surveillance from this strategic point over the lower land, protected behind impregnable walls.
In 1034, the castle became capital of the County of Foix and played a decisive role in medieval military history. During the two following centuries, the castle was home to Counts with shining personalities who became the soul of the Occitan resistance during the crusade against the Albigensians.