The first documented record of Hohenurach Castle dates from 1235, but it was probably built in the 11th century by the Counts of Urach. Count Ludwig I of Württemberg updated the castle in 1427, building a new castle on the existing foundations. Following heavy damage in 1547 during the Schmalkaldic War, Duke Christoph of Württemberg had the castle rebuilt in 1551. From the 16th century onwards, the castle complex also served as a state jail, whose inmates included the Tübingen Professor Nicodemus Frischlin (1547-1590).
As a military facility Hohenurach Fortress also posed a constant threat to the citizens of the nearby town. It wasn't until 1765, however, that Duke Carl Eugen of Württemberg decided to move his soldiers to the town and had Hohenurach Fortress torn down. All that remains of the castle site is a towering ruin – one of the biggest, mightiest and most important ruins in southern Germany.
The castle ruins are free to explore, but can only be accessed on foot.
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.