Château d'Agel was first mentioned in 1100. In the early 12th century the area was rocked by the scandal of the Cathar Wars or Albigensian Crusade. A local form of Christianity was becoming ever more popular and according to some had already become the majority religion of the area. The Catholic Church regarded it as both a heresy and a threat. The 'heresy' was strongest in the county of Toulouse and all over Languedoc, where vassals of the Count of Toulouse refortified a line of castles to protect themselves against Papal forces. Agel was one of that line of castles refortified to resist the Pope's forces.
The Crusade against the Cathars, led by Simon de Montfort, raged throughout the Languedoc. In Simon's bid to take nearby Minerve in 1210, the château d'Agel was almost entirely destroyed by fire. In July of that year, Minerve fell, and the 180 Cathars who had taken refuge there met their end on a burning pyre.
The Treaty of Paris, which annexed Languedoc to France in 1220, put an end to the Crusade. Guiraud de Pépieux, who had escaped the massacre, set about restoring the château for his descendants. Notarial records dating back to the year 1300 mention another Guillaume de Pépieux as Lord of Aigues-Vives and Agel.
The architecture of the Château d'Agel reflects its continued use over the centuries. Thus for example window styles, vary from the tiny windows of the stark 12th century fortress to the beautiful windows of the Renaissance with ornamental balusters and capitals. During the 17th century, Renaissance embrasures were replaced on the principal frontage by broad bays with small squares in the style of Trianon.
By the first half of the 20th century, the Château had fallen into disrepair, and the northern wing in particular had become a ruin. In the 1960s the Ecal family began the task of restoring the property and its gardens to their former glory. Today Château d'Agel is a grand hotel.
References:Trenčín Castle is relatively large renovated castle, towering on a steep limestone cliff directly above the city of Trenčín. It is a dominant feature not only of Trenčín, but also of the entire Považie region. The castle is a national monument.
History of the castle cliff dates back to the Roman Empire, what is proved by the inscription on the castle cliff proclaiming the victory of Roman legion against Germans in the year 179.
Today’s castle was probably built on the hill-fort. The first proven building on the hill was the Great Moravian rotunda from the 9th century and later there was a stone residential tower, which served to protect the Kingdom of Hungary and the western border. In the late 13th century the castle became a property of Palatine Matúš Csák, who became Mr. of Váh and Tatras.
Matúš Csák of Trenčín built a tower, still known as Matthew’s, which is a dominant determinant of the whole building.