Behind its understated façade, the Saint-Lucien Church of La Courneuve hides a treasure that few in Île-de-France suspect: beneath this building in Seine-Saint-Denis, a crypt preserves remarkable archaeological remains, including several Merovingian sarcophagi.
Saint-Lucien ranks among La Courneuve’s oldest monuments, with a history that reaches back to around 1015, likely in the era of Robert the Pious. It is said to have endured the Hundred Years’ War before being rebuilt at the end of the 17th century. Its bell tower preserves a medieval base, while the façade was redesigned in the 18th century, and the whole complex was expanded in the 20th. A palimpsest of eras that gives it a distinctive charm!
The most surprising part, however, lies beneath the church. Excavations carried out in the 20th century uncovered a Merovingian cemetery and several plaster sarcophagi. Part of these relics is now preserved in a crypt laid out beneath the building.
This crypt is well worth a visit, especially during special events like Heritage Days, or the Archaeology Days. During these occasional gatherings, you can enjoy a fairly short guided tour (45 minutes) at the heart of this crypt, which is rarely open to the public. To stay informed about upcoming visiting dates, go to this link.
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Dates and Opening Time
From June 12, 2026 to July 4, 2026
Location
Saint Lucien Church
7 Rue de la Convention
93120 Courneuve (La)
Official website
exploreparis.com
