Château de Gramont was first mentioned in 1329, belonging to the lords of Gramont. The medieval castle was destroyed in 1523 by the troops of Charles V of Spain and reuilt later with Renaissance additions. The gardens and terraces date from the 17th century.
In 1793 , the castle and its outbuildings were confiscated to the Nation and a military hospital was installed there for a few months. The building was empty when it was ravaged by fire in 1796.
The Château Comtal (Count’s Castle) is a medieval castle within the Cité of Carcassonne, the largest city in Europe with its city walls still intact. The Château Comtal has a strong claim to be called a 'Cathar Castle'. When the Catholic Crusader army arrived in 1209 they first attacked Raymond-Roger Trencavel's castrum at Bèziers and then moved on to his main stronghold at Carcassonne.
The castle with rectangular shape is separated from the city by a deep ditch and defended by two barbicans. There are six towers curtain walls.
The castle was restored in 1853 by the architect Eugène Viollet-le-Duc. It was added to the UNESCO list of World Heritage Sites in 1997.