Timeline

Heritage classified

Key figures

Origin and history

Fort Saint John, located in Marseilles on the St. Lawrence hill, finds its origins in a commandery of the Hospitallers of Saint John of Jerusalem established in the late twelfth century. Its strategic location, at the entrance to the Old Port, makes it a key checkpoint. Greek remains of the sixth century B.C. were discovered there, attesting to an ancient occupation. In the 15th century, King René erected a square tower to strengthen the harbour defence, while a round tower called the Fanal was added in 1644 to signal the entrance of the port.

In the 17th century, after the rebellion of Marseille against Louis XIV in 1660, the fort was transformed into a royal citadel under the direction of the knight of Clerville (1668–71), then strengthened by Vauban from 1679. The latter adds an inundable ditch and a low battery to deal with possible urban revolts. The fort, expropriated by the Hospitallers, then integrated barracks, gallery of officers and interior buildings, while retaining medieval elements such as the tower of King René.

During the French Revolution, the fort served as a prison for political figures, including Philippe Egalité and his sons, as well as for Jacobins massacred in 1795 by royalists. In the 19th century, its surroundings were modified by the digging of the canal de la Joliette (1844), which temporarily isolated the fort into an island. In 1944, a German ammunition depot exploded during the Liberation, partially destroying the buildings. Ranked a historic monument in 1964, it now houses the MuCEM, combining heritage and Mediterranean exhibitions.

The tower of King René (1447–1452), 28.50 meters high, and the tower of the fanal (1644), topped by a dome, are the most prominent architectural elements. The site also preserves remains of the Greek occupation, the hospital control, and the military installations of Vauban. Archaeological excavations (1908, 1991) revealed layers dating from the 6th to the 2nd century B.C., confirming its centuries-old historical significance.

In the 20th century, the fort lost its strategic role but became a place of memory. In 2013, its integration into the MuCEM, with a bridge linking the J4 hub, made it a Mediterranean cultural symbol. The successive restorations (1975–2000) preserved its ramparts, Saint John Chapel and barracks, while adding modern spaces dedicated to the underwater heritage (DRASSM) and then to European civilizations.

Fort Saint John thus illustrates the historical strata of Marseilles: Greek port, medieval fortress, royal citadel, revolutionary prison, and finally contemporary museum. Its hybrid architecture, combining pink limestone, Vauban bastions and modern structures, reflects this evolution, while still overlooking the emblematic entrance of the Old Port.

Future

Since 2013, Fort Saint John has hosted the Museum of Civilizations of Europe and the Mediterranean (MuCEM).

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