The treaty of Saint-Clair-sur-Epte (911) is the foundational document of the Duchy of Normandy, establishing Rollo, a Norse warlord and Viking leader,...

Saint-Clair-sur-Epte (French pronunciation: [sɛ̃ klɛːʁ syʁ ɛpt] ; literally 'Saint-Clair on Epte') is a commune in the Val-d'Oise department in Île-de-France...

département Saint-Clair-sur-Epte, in the Val-d'Oise département Saint-Clair-sur-Galaure, in the Isère département Saint-Clair-sur-l'Elle, in the Manche...

of its tributaries is the Aubette de Magny. In 911 the Treaty of Saint-Clair-sur-Epte established the river as the historical boundary of Normandy and...

enter into peace negotiations, which led to the famous Treaty of Saint-Clair-sur-Epte. The Norsemen had been formidable enough to persuade Charles the...

Chartres in 911. When Rollo was defeated, he agreed to the Treaty of Saint-Clair-sur-Epte, in which he was created the first Duke of Normandy, swore fealty...

The Duchy of Normandy grew out of the 911 Treaty of Saint-Clair-sur-Epte between King Charles III of West Francia and the Viking leader Rollo. The duchy...

the part of the territory that Rollo occupied under the Treaty of Saint-Clair-sur-Epte in 911. The terms of the treaty established the Duchy of Normandy...

Guernésiais). The Duchy of Normandy, which arose from the Treaty of Saint-Clair-sur-Epte, was a great fief of medieval France. The Norman dukes exercised...

Dudo retrospectively stated that this pact took place in 911 at Saint-Clair-sur-Epte. Dudo narrates a humorous story not found in other primary sources...