The building of three-nave stone church dedicated to St. Nicholas was started in the late 1200s, but not completed until mid-1300s. The western tower was erected in the 15th century. Engelbrekt Engelbrektsson, a Swedish rebel leader against Kalmar Union and later statesman, was probably buried to the church after he was murdered in 1436.
The church was restored in 1860-1899. The appearance has been influenced by English and German Gothic architecture styles. The interior date mainly from the 17th century.
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.