Saint-Clair-sur-Epte | |
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![]() The church of Our Lady, in Saint-Clair-sur-Epte | |
Coordinates: 49°12′29″N 1°40′49″E / 49.2081°N 1.6803°E | |
Country | France |
Region | Île-de-France |
Department | Val-d'Oise |
Arrondissement | Pontoise |
Canton | Vauréal |
Government | |
• Mayor (2020–2026) | Christophe Depont[1] |
Area 1 | 12.18 km2 (4.70 sq mi) |
Population (2021)[2] | 986 |
• Density | 81/km2 (210/sq mi) |
Time zone | UTC+01:00 (CET) |
• Summer (DST) | UTC+02:00 (CEST) |
INSEE/Postal code | 95541 /95770 |
Elevation | 30–142 m (98–466 ft) |
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. |
Saint-Clair-sur-Epte (French pronunciation: [sɛ̃ klɛʁ syʁ ɛpt] , literally Saint-Clair on Epte) is a commune in the Val-d'Oise department in Île-de-France in northern France. It is situated on the river Epte, 10 km southwest of Gisors.
The treaty of Saint-Clair-sur-Epte in 911 established Rollo, a Norse warlord and Viking leader, as the first Duke of Normandy.
Henry I of England seized the castle of Saint-Clair-sur-Epte in 1118.[3]