All Saints' Church is a chapel located in the Prague Castle complex. The site of the church was originally consecrated in 1185 and a Romanesque building built; the oldest parts of the current building date to a structure constructed by Peter Parler in the 14th century.
Although originally free-standing, the church was badly damaged in an 1541 fire which engulfed the palace and church. Through subsequent successive rebuildings and enlargements, the church became physically integrated with the palace, specifically Vladislav Hall.
The church holds the tomb of St. Procopius and his life is depicted on paintings on the walls. Although accessible from Vladislav Hall, the church is generally only open to the public during religious services and concerts.
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.