Église Saint-Seurin de Plassac, Roman Catholic church in Plassac, France

Église Saint-Seurin de Plassac is a Roman Catholic church built on a hillside above the Gironde estuary. Its masonry combines a Romanesque core with later additions, and the building is also known as the église Saint-Pierre de Plassac. Archaeological work on the site uncovered a 7th-century Merovingian structure beneath the present church.

Archaeological investigations revealed that a Merovingian structure from the 7th century occupied this site, establishing an early religious presence. The current building was constructed over these foundations and underwent numerous modifications throughout subsequent centuries.

The church houses the statue of Notre-Dame de Montuzet and the relics of Saint Fructose, which draw pilgrims seeking spiritual connection. These objects anchor the community's religious life and traditions.

The church sits south of Blaye and is accessible via the main roads connecting the estuary communities, making it reachable by car. The hillside location means visitors should wear footwear with good grip for comfortable walking around the grounds.

Beside the church, excavations uncovered a Gallo-Roman mosaic floor and a burial chamber holding the remains of a young woman. The mosaic points to a villa or funerary monument on the hillside above the Gironde long before the parish church was built.