Sint-Petrus-en-Pauluskerk (Church of Saint Peter and Saint Paul) is built on the ashes of a previous church that occupied the site. King Leopold II enthusiastically supported a plan to build a new and more magnificent church. Construction started in 1899 and was completed and consecrated by Bishop Waffelaert on August 31, 1908. Its stained glass windows were destroyed during the two World Wars and were replaced by windows by Michiel Martens. The church is 70 meters long and 30 meters wide. Its spires are 72 meters high.
The church was built in the Neo-Gothic style according to plans by architect Louis Delacenserie, who based his design on the Gothic Cologne Cathedral and the Neo-Gothic Votivkirche in Vienna.
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.