The Citadel of Montpellier is an Early Modern fortification in the city of Montpellier, in the Hérault département of southern France. It was built between 1624 and 1627, after several rebellions under the orders of Louis XIII in order to keep watch over the town. In the 20th century it became the Joffre Barracks, named after Joseph Joffre, and since 1947 the citadel has been an academic campus – the nationwide famous Lycée Joffre.
In 1621, King Louis XIII arrived with soldiers to quell a Huguenot rebellion; he took over the city after an eight-month siege. The king ordered that a royal citadel close to the city be constructed to control the city and the surrounding region, where there was a large Huguenot population.
The citadel was built between 1624 and 1627 between the fortifications of the Écusson, or old town, and the coastal plain of the River Lez. It was separated from the city proper by a wide esplanade, looking over the floodplain of the Lez. It comprised four bastions organized in a square: facing the city was the Bastion du Roi ("King's Bastion") to the northwest and the Bastion de la Reine ("Queen's Bastion") to the southwest; facing the floodplain was the Bastion de Montmorency to the northeast and the Bastion de Ventadour to the southeast.
The buildings within the citadel have been reconstructed multiple times. The last reconstruction before the citadel was converted into an educational building was in 1863.
Under the Ancien Régime, the citadel held royal troops as well as detachments of conscripted forces from Bas-Languedoc. Later, it became a barracks of the 2nd regiment of Génie.
During the 19th century, it became clear that the high school for young men in Montpellier was too small: having been built near the esplanade in 1804 in the same place as a former Jesuit school, by the later part of the century, the high school and its students were dispersed throughout two other sites north of the old town.
In 1947 city authorities decided to move the high school into the citadel, which had since become the Joffre Barracks. The first classes were held there on 1 October 1948, and the last students were moved in during October 1959.
Since then, the buildings have been adapted to present-day life and new buildings for classrooms have been added. The powder magazine of the Bastion de Montmorency has been converted into an olympic pool and large gymnasium, and the nearby fields into athletic fields. The academic campus, constituted of the middle school, high school and classes préparatoires, occupies 15 hectares.
Of the original citadel, the following vestiges remain: