The Basilica of Saints Nazarius and Celsus is a romanesque-gothic minor basilica, located in the citadel of Carcassonne. The original church is thought to have been constructed in the 6th century during the reign of Theodoric the Great, ruler of the Visigoths.
On 12 June 1096, Pope Urban II visited the town and blessed the building materials for the construction of the cathedral. Construction was completed in the first half of the twelfth century. It was built on the site of a Carolingian cathedral, of which no traces remain. The crypt too, despite its ancient appearance, dates from the new construction.
Around the end of the 13th century, during the rule of kings Philip III, Philip IV, and the episcopates of Pierre de Rochefort and Pierre Rodier, the cathedral was reconstructed in the Gothic style. It remained the cathedral of Carcassonne until 1803, when it lost the title to the present Carcassonne Cathedral.
The Church of Saints Nazarius and Celsus obtained the status of historical monument in 1840. Around this time, the architect Eugène Viollet-le-Duc renovated the church along with the rest of the citadel. In 1898, the church was elevated to a minor basilica.
The sandstone basilica's floor plan is based on a Latin cross, internally measuring 59 m in total length, 16 m in nave width, and 36 m along the transept. The oldest part of the church is the Romanesque tripartite nave. The main entrance in its north wall is formed by a Romanesque portal of five receding arches over two doors. A fortress façade forms the west wall, as is common for medieval Languedocian church buildings.
The transept and choir were rebuilt in the Gothic style. The larger windows in this part of the church permit a better illumination compared to the darker romansque nave. The central stained glass window of the choir from 1280 is one of the oldest ones in the south of France. Together with the upper trefoils (the Resurrection of Jesus and the Resurrection of the dead), it depicts the life of Jesus in 16 medallions.
References:The Citadelle of Quebec is an active military installation and official residence of both the Canadian monarch and the Governor General of Canada. It is located atop Cap Diamant, adjoining the Plains of Abraham in Quebec City. The citadel is the oldest military building in Canada, and forms part of the fortifications of Quebec City, which is one of only two cities in North America still surrounded by fortifications, the other being Campeche, Mexico.
The first fortifications in Quebec were built by the Governor General of New France Louis de Buade, and completed just in time for the Battle of Quebec in 1690.
After the British conquest in the second half of the 18th century, the problem of Quebec City's defences grew more acute.