The Château d'Arques is one of the so-called Cathar castles. In the 12th century, there was a conflict between the viscount of Carcassonne and several seigneurs, including Arques and Lagrasse. The estates at Arques became the property of the seigneurs of Termes.
In 1231, after the defeat of the Château de Termes during the Albigensian Crusade, Simon de Montfort, 5th Earl of Leicester, attacked Arques. After having burned the village, situated on the banks of the Rialsès, he gave this part of Razès to one of his lieutenants, Pierre de Voisins. In 1284, Gilles de Voisins began work on building a castle, with the intention of defending the Rialsès valley and controlling the transhumance routes leading to the Corbières. In 1316, Gilles II de Voisins altered and completed the castle.
In 1575, the castle was besieged by Protestants during the Wars of Religion and only the keep managed to resist the assault. By the start of the French Revolution the castle had fallen into ruin. It was sold as a national asset and subsequently suffered severe damage.
The castle consists of an enceinte and a high square keep with four turrets. It was built after Albigensian Crusade of the 13th century. The almost square enceinte encircles the castle with a gateway furnished with machicolation and surmounted with a keystone bearing the arms of the Voisin famil. Numerous buildings must have existed the length of the enceinte. Two well-preserved residential towers remain.
The square keep, 25 m high, is a work of military architecture inspired by castles in the Ile de France. It has four levels served by a spiral staircase. The various rooms were constructed with extreme care. The top floor was given over to defence of the castle. Forty soldiers could defend it thanks to numerous murder holes and rectangular bays set symmetrically into the walls.
It is a good example of the progress in military construction in a strategically important region.
The castle is owned partly by the commune and partly privately. It is open to visitors.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.